diff --git a/.github/workflows/build-and-publish.yaml b/.github/workflows/build-and-publish.yaml
index fefd208..be8f98b 100644
--- a/.github/workflows/build-and-publish.yaml
+++ b/.github/workflows/build-and-publish.yaml
@@ -9,6 +9,8 @@ jobs:
   build-and-publish:
     name: Java Gradle
     uses: bakdata/ci-templates/.github/workflows/java-gradle-library.yaml@1.39.1
+    with:
+      java-version: 17
     secrets:
       sonar-token: ${{ secrets.SONARCLOUD_TOKEN }}
       sonar-organization: ${{ secrets.SONARCLOUD_ORGANIZATION }}
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 6258a2b..2f4ea28 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -18,6 +18,7 @@ jobs:
     name: Java Gradle
     uses: bakdata/ci-templates/.github/workflows/java-gradle-release.yaml@1.39.1
     with:
+      java-version: 17
       release-type: "${{ inputs.release-type }}"
     secrets:
       github-email: "${{ secrets.GH_EMAIL }}"
diff --git a/brute-force-connect/build.gradle.kts b/brute-force-connect/build.gradle.kts
index 9caa5f3..a82a0b2 100644
--- a/brute-force-connect/build.gradle.kts
+++ b/brute-force-connect/build.gradle.kts
@@ -23,11 +23,10 @@ dependencies {
     testImplementation(group = "io.confluent", name = "kafka-streams-protobuf-serde", version = confluentVersion)
     testImplementation(group = "io.confluent", name = "kafka-streams-json-schema-serde", version = confluentVersion)
 
-    testImplementation(group = "com.adobe.testing", name = "s3mock-junit5", version = "2.1.8") {
-        exclude(group = "ch.qos.logback")
-        exclude(group = "org.apache.logging.log4j", module = "log4j-to-slf4j")
-    }
-    val fluentKafkaVersion = "2.5.1"
+    val testContainersVersion: String by project
+    testImplementation(group = "org.testcontainers", name = "junit-jupiter", version = testContainersVersion)
+    testImplementation(group = "org.testcontainers", name = "localstack", version = testContainersVersion)
+    val fluentKafkaVersion = "2.11.3"
     testImplementation(
         group = "com.bakdata.fluent-kafka-streams-tests",
         name = "schema-registry-mock-junit5",
@@ -35,7 +34,7 @@ dependencies {
     )
 
     testImplementation(group = "com.bakdata.kafka", name = "large-message-serde", version = largeMessageVersion)
-    testImplementation(group = "net.mguenther.kafka", name = "kafka-junit", version = kafkaVersion) {
+    testImplementation(group = "net.mguenther.kafka", name = "kafka-junit", version = "3.5.0") {
         exclude(group = "org.slf4j", module = "slf4j-log4j12")
     }
     testImplementation(group = "org.apache.kafka", name = "connect-file", version = kafkaVersion)
diff --git a/brute-force-connect/src/test/java/com/bakdata/kafka/BruteForceConverterIntegrationTest.java b/brute-force-connect/src/test/java/com/bakdata/kafka/BruteForceConverterIntegrationTest.java
index ee58957..b874cc2 100644
--- a/brute-force-connect/src/test/java/com/bakdata/kafka/BruteForceConverterIntegrationTest.java
+++ b/brute-force-connect/src/test/java/com/bakdata/kafka/BruteForceConverterIntegrationTest.java
@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2022 bakdata
+ * Copyright (c) 2024 bakdata
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -28,11 +28,11 @@
 import static net.mguenther.kafka.junit.Wait.delay;
 import static org.assertj.core.api.Assertions.assertThat;
 
-import com.adobe.testing.s3mock.junit5.S3MockExtension;
 import com.bakdata.schemaregistrymock.junit5.SchemaRegistryMockExtension;
 import io.confluent.kafka.serializers.AbstractKafkaSchemaSerDeConfig;
 import io.confluent.kafka.streams.serdes.avro.GenericAvroSerializer;
 import java.io.IOException;
+import java.net.URI;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.util.Collections;
@@ -55,11 +55,47 @@
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
 import org.junit.jupiter.api.extension.RegisterExtension;
-
+import org.testcontainers.containers.localstack.LocalStackContainer;
+import org.testcontainers.containers.localstack.LocalStackContainer.Service;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+import org.testcontainers.utility.DockerImageName;
+import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
+import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
+import software.amazon.awssdk.regions.Region;
+import software.amazon.awssdk.services.s3.S3Client;
+import software.amazon.awssdk.services.s3.model.CreateBucketRequest;
+
+@Testcontainers
 class BruteForceConverterIntegrationTest {
-    @RegisterExtension
-    static final S3MockExtension S3_MOCK = S3MockExtension.builder().silent()
-            .withSecureConnection(false).build();
+
+    private static final DockerImageName LOCAL_STACK_IMAGE = DockerImageName.parse("localstack/localstack")
+            .withTag("1.3.1");
+    @Container
+    private static final LocalStackContainer LOCAL_STACK_CONTAINER = new LocalStackContainer(LOCAL_STACK_IMAGE)
+            .withServices(Service.S3);
+
+    static S3Client getS3Client() {
+        return S3Client.builder()
+                .endpointOverride(getEndpointOverride())
+                .credentialsProvider(StaticCredentialsProvider.create(getCredentials()))
+                .region(getRegion())
+                .build();
+    }
+
+    private static Region getRegion() {
+        return Region.of(LOCAL_STACK_CONTAINER.getRegion());
+    }
+
+    private static AwsBasicCredentials getCredentials() {
+        return AwsBasicCredentials.create(
+                LOCAL_STACK_CONTAINER.getAccessKey(), LOCAL_STACK_CONTAINER.getSecretKey()
+        );
+    }
+
+    private static URI getEndpointOverride() {
+        return LOCAL_STACK_CONTAINER.getEndpointOverride(Service.S3);
+    }
     private static final String BUCKET_NAME = "testbucket";
     private static final String TOPIC = "input";
     @RegisterExtension
@@ -69,12 +105,13 @@ class BruteForceConverterIntegrationTest {
 
     private static Properties createS3BackedProperties() {
         final Properties properties = new Properties();
-        properties.put(AbstractLargeMessageConfig.S3_ENDPOINT_CONFIG, "http://localhost:" + S3_MOCK.getHttpPort());
-        properties.put(AbstractLargeMessageConfig.S3_REGION_CONFIG, "us-east-1");
-        properties.put(AbstractLargeMessageConfig.S3_ACCESS_KEY_CONFIG, "foo");
-        properties.put(AbstractLargeMessageConfig.S3_SECRET_KEY_CONFIG, "bar");
-        properties.put(AbstractLargeMessageConfig.S3_ENABLE_PATH_STYLE_ACCESS_CONFIG, true);
-        properties.put(AbstractLargeMessageConfig.BASE_PATH_CONFIG, String.format("s3://%s/", BUCKET_NAME));
+        final AwsBasicCredentials credentials = getCredentials();
+        properties.setProperty(AbstractLargeMessageConfig.S3_ENDPOINT_CONFIG,
+                getEndpointOverride().toString());
+        properties.setProperty(AbstractLargeMessageConfig.S3_REGION_CONFIG, getRegion().id());
+        properties.setProperty(AbstractLargeMessageConfig.S3_ACCESS_KEY_CONFIG, credentials.accessKeyId());
+        properties.setProperty(AbstractLargeMessageConfig.S3_SECRET_KEY_CONFIG, credentials.secretAccessKey());
+        properties.setProperty(AbstractLargeMessageConfig.BASE_PATH_CONFIG, String.format("s3://%s/", BUCKET_NAME));
         return properties;
     }
 
@@ -85,7 +122,9 @@ private static String withValuePrefix(final Object config) {
     @BeforeEach
     void setUp() throws IOException {
         this.outputFile = Files.createTempFile("test", "temp");
-        S3_MOCK.createS3Client().createBucket(BUCKET_NAME);
+        getS3Client().createBucket(CreateBucketRequest.builder()
+                .bucket(BUCKET_NAME)
+                .build());
         this.kafkaCluster = this.createCluster();
         this.kafkaCluster.start();
     }
@@ -130,13 +169,13 @@ private EmbeddedKafkaCluster createCluster() {
 
     private Properties config() {
         final Properties properties = new Properties();
-        properties.put(ConnectorConfig.NAME_CONFIG, "test");
-        properties.put(ConnectorConfig.CONNECTOR_CLASS_CONFIG, "FileStreamSink");
-        properties.put(SinkConnector.TOPICS_CONFIG, TOPIC);
-        properties.put(FileStreamSinkConnector.FILE_CONFIG, this.outputFile.toString());
-        properties.put(ConnectorConfig.KEY_CONVERTER_CLASS_CONFIG, StringConverter.class.getName());
-        properties.put(ConnectorConfig.VALUE_CONVERTER_CLASS_CONFIG, BruteForceConverter.class.getName());
-        properties.put(withValuePrefix(AbstractKafkaSchemaSerDeConfig.SCHEMA_REGISTRY_URL_CONFIG),
+        properties.setProperty(ConnectorConfig.NAME_CONFIG, "test");
+        properties.setProperty(ConnectorConfig.CONNECTOR_CLASS_CONFIG, "FileStreamSink");
+        properties.setProperty(SinkConnector.TOPICS_CONFIG, TOPIC);
+        properties.setProperty(FileStreamSinkConnector.FILE_CONFIG, this.outputFile.toString());
+        properties.setProperty(ConnectorConfig.KEY_CONVERTER_CLASS_CONFIG, StringConverter.class.getName());
+        properties.setProperty(ConnectorConfig.VALUE_CONVERTER_CLASS_CONFIG, BruteForceConverter.class.getName());
+        properties.setProperty(withValuePrefix(AbstractKafkaSchemaSerDeConfig.SCHEMA_REGISTRY_URL_CONFIG),
                 this.schemaRegistry.getUrl());
         createS3BackedProperties().forEach((key, value) -> properties.put(withValuePrefix(key), value));
         return properties;
@@ -154,7 +193,7 @@ private Properties createBackedStringProducerProperties(final boolean shouldBack
     private Properties createBaseProducerProperties() {
         final Properties properties = new Properties();
         properties.put(ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, StringSerializer.class);
-        properties.put(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, this.kafkaCluster.getBrokerList());
+        properties.setProperty(ProducerConfig.BOOTSTRAP_SERVERS_CONFIG, this.kafkaCluster.getBrokerList());
         return properties;
     }
 
@@ -167,7 +206,7 @@ private Properties createStringProducerProperties() {
     private Properties createAvroProducerProperties() {
         final Properties properties = this.createBaseProducerProperties();
         properties.put(ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, GenericAvroSerializer.class);
-        properties.put(AbstractKafkaSchemaSerDeConfig.SCHEMA_REGISTRY_URL_CONFIG, this.schemaRegistry.getUrl());
+        properties.setProperty(AbstractKafkaSchemaSerDeConfig.SCHEMA_REGISTRY_URL_CONFIG, this.schemaRegistry.getUrl());
         return properties;
     }
 }
diff --git a/brute-force-connect/src/test/java/com/bakdata/kafka/BruteForceConverterTest.java b/brute-force-connect/src/test/java/com/bakdata/kafka/BruteForceConverterTest.java
index 9ec37e9..0215dce 100644
--- a/brute-force-connect/src/test/java/com/bakdata/kafka/BruteForceConverterTest.java
+++ b/brute-force-connect/src/test/java/com/bakdata/kafka/BruteForceConverterTest.java
@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2022 bakdata
+ * Copyright (c) 2024 bakdata
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -30,7 +30,6 @@
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
 
-import com.adobe.testing.s3mock.junit5.S3MockExtension;
 import com.bakdata.schemaregistrymock.SchemaRegistryMock;
 import com.google.protobuf.Descriptors.Descriptor;
 import com.google.protobuf.Descriptors.DescriptorValidationException;
@@ -49,6 +48,7 @@
 import io.confluent.kafka.streams.serdes.avro.GenericAvroSerializer;
 import io.confluent.kafka.streams.serdes.json.KafkaJsonSchemaSerde;
 import io.confluent.kafka.streams.serdes.protobuf.KafkaProtobufSerde;
+import java.net.URI;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -76,21 +76,57 @@
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.BeforeEach;
 import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.extension.RegisterExtension;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
-
+import org.testcontainers.containers.localstack.LocalStackContainer;
+import org.testcontainers.containers.localstack.LocalStackContainer.Service;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+import org.testcontainers.utility.DockerImageName;
+import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
+import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
+import software.amazon.awssdk.regions.Region;
+import software.amazon.awssdk.services.s3.S3Client;
+import software.amazon.awssdk.services.s3.model.CreateBucketRequest;
+
+@Testcontainers
 class BruteForceConverterTest {
-    @RegisterExtension
-    static final S3MockExtension S3_MOCK = S3MockExtension.builder().silent().withSecureConnection(false).build();
-    private static final String TOPIC = "topic";
-    final SchemaRegistryMock schemaRegistry = new SchemaRegistryMock(List.of(
+
+    private static final DockerImageName LOCAL_STACK_IMAGE = DockerImageName.parse("localstack/localstack")
+            .withTag("1.3.1");
+    @Container
+    private static final LocalStackContainer LOCAL_STACK_CONTAINER = new LocalStackContainer(LOCAL_STACK_IMAGE)
+            .withServices(Service.S3);
+    private final SchemaRegistryMock schemaRegistry = new SchemaRegistryMock(List.of(
             new AvroSchemaProvider(),
             new JsonSchemaProvider(),
             new ProtobufSchemaProvider()
     ));
 
+    static S3Client getS3Client() {
+        return S3Client.builder()
+                .endpointOverride(getEndpointOverride())
+                .credentialsProvider(StaticCredentialsProvider.create(getCredentials()))
+                .region(getRegion())
+                .build();
+    }
+
+    private static Region getRegion() {
+        return Region.of(LOCAL_STACK_CONTAINER.getRegion());
+    }
+
+    private static AwsBasicCredentials getCredentials() {
+        return AwsBasicCredentials.create(
+                LOCAL_STACK_CONTAINER.getAccessKey(), LOCAL_STACK_CONTAINER.getSecretKey()
+        );
+    }
+    private static final String TOPIC = "topic";
+
+    private static URI getEndpointOverride() {
+        return LOCAL_STACK_CONTAINER.getEndpointOverride(Service.S3);
+    }
+
     static Stream<Arguments> generateGenericAvroSerializers() {
         return generateSerializers(new GenericAvroSerde());
     }
@@ -125,7 +161,7 @@ private static DynamicMessage generateDynamicMessage() throws DescriptorValidati
         final DynamicSchema dynamicSchema = DynamicSchema.newBuilder()
                 .setName("file")
                 .addMessageDefinition(MessageDefinition.newBuilder("Test")
-                        .addField("", "string", "testId", 1, null, null, null)
+                        .addField(null, "string", "testId", 1, null, null)
                         .build())
                 .build();
         final Descriptor test = dynamicSchema.getMessageDescriptor("Test");
@@ -154,12 +190,12 @@ private static <T> SerializerFactory<T> createLargeMessageSerializer(final Serde
     }
 
     private static Map<String, Object> getS3EndpointConfig() {
+        final AwsBasicCredentials credentials = getCredentials();
         return Map.of(
-                AbstractLargeMessageConfig.S3_ENDPOINT_CONFIG, "http://localhost:" + S3_MOCK.getHttpPort(),
-                AbstractLargeMessageConfig.S3_REGION_CONFIG, "us-east-1",
-                AbstractLargeMessageConfig.S3_ACCESS_KEY_CONFIG, "foo",
-                AbstractLargeMessageConfig.S3_SECRET_KEY_CONFIG, "bar",
-                AbstractLargeMessageConfig.S3_ENABLE_PATH_STYLE_ACCESS_CONFIG, true
+                AbstractLargeMessageConfig.S3_ENDPOINT_CONFIG, getEndpointOverride().toString(),
+                AbstractLargeMessageConfig.S3_REGION_CONFIG, getRegion().id(),
+                AbstractLargeMessageConfig.S3_ACCESS_KEY_CONFIG, credentials.accessKeyId(),
+                AbstractLargeMessageConfig.S3_SECRET_KEY_CONFIG, credentials.secretAccessKey()
         );
     }
 
@@ -287,14 +323,14 @@ void shouldConvertByteKeys(final SerializerFactory<byte[]> factory) {
     }
 
     @ParameterizedTest
-    @MethodSource("generateProtobufSerializers")
-    void shouldConvertJsonKeys(final SerializerFactory<DynamicMessage> factory) throws DescriptorValidationException {
-        final DynamicMessage value = generateDynamicMessage();
+    @MethodSource("generateJsonSerializers")
+    void shouldConvertJsonKeys(final SerializerFactory<JsonTestRecord> factory) {
+        final JsonTestRecord value = new JsonTestRecord("test");
         final Map<String, Object> config = Map.of(
                 BruteForceConverterConfig.CONVERTER_CONFIG,
-                List.of(AvroConverter.class.getName(), ProtobufConverter.class.getName())
+                List.of(AvroConverter.class.getName(), JsonSchemaConverter.class.getName())
         );
-        this.testValueConversion(factory, new KafkaProtobufSerializer<>(), value, config, new ProtobufConverter());
+        this.testKeyConversion(factory, new KafkaJsonSchemaSerializer<>(), value, config, new JsonSchemaConverter());
     }
 
     @ParameterizedTest
@@ -359,7 +395,9 @@ private <T> void testConversion(final SerializerFactory<T> factory, final Serial
             final T value, final Map<String, Object> originals, final Converter expectedConverter,
             final boolean isKey) {
         final String bucket = "bucket";
-        S3_MOCK.createS3Client().createBucket(bucket);
+        getS3Client().createBucket(CreateBucketRequest.builder()
+                .bucket(bucket)
+                .build());
         final Map<String, Object> config = new HashMap<>(originals);
         config.put(SCHEMA_REGISTRY_URL_CONFIG, this.schemaRegistry.getUrl());
         config.put(AbstractLargeMessageConfig.BASE_PATH_CONFIG, "s3://" + bucket + "/");
diff --git a/brute-force-serde/build.gradle.kts b/brute-force-serde/build.gradle.kts
index 8c4cee5..1976cbf 100644
--- a/brute-force-serde/build.gradle.kts
+++ b/brute-force-serde/build.gradle.kts
@@ -4,7 +4,7 @@ import com.google.protobuf.gradle.protoc
 description = "Kafka SerDe that deserializes messages of an unknown serialization format"
 
 plugins {
-    id("com.github.davidmc24.gradle.plugin.avro") version "1.2.1"
+    id("com.github.davidmc24.gradle.plugin.avro") version "1.9.1"
     id("com.google.protobuf") version "0.8.18"
 }
 
@@ -26,13 +26,12 @@ dependencies {
     testImplementation(group = "io.confluent", name = "kafka-streams-protobuf-serde", version = confluentVersion)
     testImplementation(group = "io.confluent", name = "kafka-streams-json-schema-serde", version = confluentVersion)
 
-    testImplementation(group = "com.adobe.testing", name = "s3mock-junit5", version = "2.1.8") {
-        exclude(group = "ch.qos.logback")
-        exclude(group = "org.apache.logging.log4j", module = "log4j-to-slf4j")
-    }
+    val testContainersVersion: String by project
+    testImplementation(group = "org.testcontainers", name = "junit-jupiter", version = testContainersVersion)
+    testImplementation(group = "org.testcontainers", name = "localstack", version = testContainersVersion)
     testImplementation(group = "org.jooq", name = "jool", version = "0.9.14")
 
-    val fluentKafkaVersion = "2.5.1"
+    val fluentKafkaVersion = "2.11.3"
     testImplementation(
         group = "com.bakdata.fluent-kafka-streams-tests",
         name = "fluent-kafka-streams-tests-junit5",
diff --git a/brute-force-serde/src/test/java/com/bakdata/kafka/BruteForceDeserializerTest.java b/brute-force-serde/src/test/java/com/bakdata/kafka/BruteForceDeserializerTest.java
index e75f3d1..8b1517f 100644
--- a/brute-force-serde/src/test/java/com/bakdata/kafka/BruteForceDeserializerTest.java
+++ b/brute-force-serde/src/test/java/com/bakdata/kafka/BruteForceDeserializerTest.java
@@ -1,7 +1,7 @@
 /*
  * MIT License
  *
- * Copyright (c) 2022 bakdata
+ * Copyright (c) 2024 bakdata
  *
  * Permission is hereby granted, free of charge, to any person obtaining a copy
  * of this software and associated documentation files (the "Software"), to deal
@@ -28,7 +28,6 @@
 import static org.assertj.core.api.Assertions.assertThat;
 import static org.assertj.core.api.Assertions.assertThatExceptionOfType;
 
-import com.adobe.testing.s3mock.junit5.S3MockExtension;
 import com.bakdata.Id;
 import com.bakdata.fluent_kafka_streams_tests.TestTopology;
 import com.bakdata.kafka.Test.ProtobufRecord;
@@ -41,6 +40,7 @@
 import io.confluent.kafka.streams.serdes.avro.SpecificAvroSerde;
 import io.confluent.kafka.streams.serdes.json.KafkaJsonSchemaSerde;
 import io.confluent.kafka.streams.serdes.protobuf.KafkaProtobufSerde;
+import java.net.URI;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
@@ -71,15 +71,50 @@
 import org.jooq.lambda.Seq;
 import org.junit.jupiter.api.AfterEach;
 import org.junit.jupiter.api.Test;
-import org.junit.jupiter.api.extension.RegisterExtension;
 import org.junit.jupiter.params.ParameterizedTest;
 import org.junit.jupiter.params.provider.Arguments;
 import org.junit.jupiter.params.provider.MethodSource;
-
+import org.testcontainers.containers.localstack.LocalStackContainer;
+import org.testcontainers.containers.localstack.LocalStackContainer.Service;
+import org.testcontainers.junit.jupiter.Container;
+import org.testcontainers.junit.jupiter.Testcontainers;
+import org.testcontainers.utility.DockerImageName;
+import software.amazon.awssdk.auth.credentials.AwsBasicCredentials;
+import software.amazon.awssdk.auth.credentials.StaticCredentialsProvider;
+import software.amazon.awssdk.regions.Region;
+import software.amazon.awssdk.services.s3.S3Client;
+import software.amazon.awssdk.services.s3.model.CreateBucketRequest;
+
+@Testcontainers
 class BruteForceDeserializerTest {
-    @RegisterExtension
-    static final S3MockExtension S3_MOCK = S3MockExtension.builder().silent()
-            .withSecureConnection(false).build();
+
+    private static final DockerImageName LOCAL_STACK_IMAGE = DockerImageName.parse("localstack/localstack")
+            .withTag("1.3.1");
+    @Container
+    private static final LocalStackContainer LOCAL_STACK_CONTAINER = new LocalStackContainer(LOCAL_STACK_IMAGE)
+            .withServices(Service.S3);
+
+    static S3Client getS3Client() {
+        return S3Client.builder()
+                .endpointOverride(getEndpointOverride())
+                .credentialsProvider(StaticCredentialsProvider.create(getCredentials()))
+                .region(getRegion())
+                .build();
+    }
+
+    private static Region getRegion() {
+        return Region.of(LOCAL_STACK_CONTAINER.getRegion());
+    }
+
+    private static AwsBasicCredentials getCredentials() {
+        return AwsBasicCredentials.create(
+                LOCAL_STACK_CONTAINER.getAccessKey(), LOCAL_STACK_CONTAINER.getSecretKey()
+        );
+    }
+
+    private static URI getEndpointOverride() {
+        return LOCAL_STACK_CONTAINER.getEndpointOverride(Service.S3);
+    }
 
     private static final String INPUT_TOPIC = "input";
     private static final String OUTPUT_TOPIC = "output";
@@ -177,12 +212,12 @@ private static <T> SerdeFactory<T> createLargeMessageSerde(final Serde<T> inner,
     }
 
     private static Map<String, Object> getS3EndpointConfig() {
+        final AwsBasicCredentials credentials = getCredentials();
         return Map.of(
-                AbstractLargeMessageConfig.S3_ENDPOINT_CONFIG, "http://localhost:" + S3_MOCK.getHttpPort(),
-                AbstractLargeMessageConfig.S3_REGION_CONFIG, "us-east-1",
-                AbstractLargeMessageConfig.S3_ACCESS_KEY_CONFIG, "foo",
-                AbstractLargeMessageConfig.S3_SECRET_KEY_CONFIG, "bar",
-                AbstractLargeMessageConfig.S3_ENABLE_PATH_STYLE_ACCESS_CONFIG, true
+                AbstractLargeMessageConfig.S3_ENDPOINT_CONFIG, getEndpointOverride().toString(),
+                AbstractLargeMessageConfig.S3_REGION_CONFIG, getRegion().id(),
+                AbstractLargeMessageConfig.S3_ACCESS_KEY_CONFIG, credentials.accessKeyId(),
+                AbstractLargeMessageConfig.S3_SECRET_KEY_CONFIG, credentials.secretAccessKey()
         );
     }
 
@@ -329,7 +364,7 @@ void shouldReadGenericAvroKeys(final SerdeFactory<GenericRecord> factory) {
     void shouldReadBytesValues(final SerdeFactory<byte[]> factory) {
         final Properties properties = new Properties();
         // this makes StringDeserializer fail
-        properties.put("value.deserializer.encoding", "missing");
+        properties.setProperty("value.deserializer.encoding", "missing");
 
         final byte[] value = {1, 0};
         this.testValueTopology(factory, properties, Serdes.ByteArray(), value);
@@ -340,7 +375,7 @@ void shouldReadBytesValues(final SerdeFactory<byte[]> factory) {
     void shouldReadBytesKeys(final SerdeFactory<byte[]> factory) {
         final Properties properties = new Properties();
         // this makes StringDeserializer fail
-        properties.put("key.deserializer.encoding", "missing");
+        properties.setProperty("key.deserializer.encoding", "missing");
 
         final byte[] value = {1, 0};
         this.testKeyTopology(factory, properties, Serdes.ByteArray(), value);
@@ -389,7 +424,9 @@ void shouldReadJsonKeys(final SerdeFactory<JsonTestRecord> factory) {
     private <T> void testValueTopology(final SerdeFactory<T> factory, final Properties properties, final Serde<T> serde,
             final T value) {
         final String bucket = "bucket";
-        S3_MOCK.createS3Client().createBucket(bucket);
+        getS3Client().createBucket(CreateBucketRequest.builder()
+                .bucket(bucket)
+                .build());
         this.createTopology(p -> createValueTopology(p, serde.getClass()), properties);
 
         final Map<String, Object> config = Map.of(
@@ -416,7 +453,9 @@ private <T> void testValueTopology(final SerdeFactory<T> factory, final Properti
     private <T> void testKeyTopology(final SerdeFactory<T> factory, final Properties properties, final Serde<T> serde,
             final T value) {
         final String bucket = "bucket";
-        S3_MOCK.createS3Client().createBucket(bucket);
+        getS3Client().createBucket(CreateBucketRequest.builder()
+                .bucket(bucket)
+                .build());
         this.createTopology(p -> createKeyTopology(p, serde.getClass()), properties);
 
         final Map<String, Object> config = Map.of(
diff --git a/build.gradle.kts b/build.gradle.kts
index e216cfd..e77ed2a 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -1,12 +1,9 @@
-import net.researchgate.release.GitAdapter.GitConfig
-import net.researchgate.release.ReleaseExtension
-
 plugins {
-    id("net.researchgate.release") version "2.8.1"
-    id("com.bakdata.sonar") version "1.1.7"
-    id("com.bakdata.sonatype") version "1.1.7"
-    id("org.hildan.github.changelog") version "0.8.0"
-    id("io.freefair.lombok") version "5.3.3.3"
+    id("net.researchgate.release") version "3.0.2"
+    id("com.bakdata.sonar") version "1.1.9"
+    id("com.bakdata.sonatype") version "1.1.9"
+    id("org.hildan.github.changelog") version "1.12.1"
+    id("io.freefair.lombok") version "6.6.3"
 }
 
 allprojects {
@@ -47,7 +44,7 @@ subprojects {
     apply(plugin = "java-library")
     apply(plugin = "io.freefair.lombok")
 
-    configure<JavaPluginConvention> {
+    configure<JavaPluginExtension> {
         sourceCompatibility = JavaVersion.VERSION_11
         targetCompatibility = JavaVersion.VERSION_11
     }
@@ -60,17 +57,9 @@ subprojects {
         "testImplementation"(group = "org.junit.jupiter", name = "junit-jupiter-api", version = junitVersion)
         "testImplementation"(group = "org.junit.jupiter", name = "junit-jupiter-params", version = junitVersion)
         "testRuntimeOnly"(group = "org.junit.jupiter", name = "junit-jupiter-engine", version = junitVersion)
-        "testImplementation"(group = "org.assertj", name = "assertj-core", version = "3.20.2")
+        "testImplementation"(group = "org.assertj", name = "assertj-core", version = "3.25.1")
 
         val log4jVersion: String by project
-        "testImplementation"(group = "org.apache.logging.log4j", name = "log4j-slf4j-impl", version = log4jVersion)
-    }
-}
-
-fun ReleaseExtension.git(configure: GitConfig.() -> Unit) = (getProperty("git") as GitConfig).configure()
-
-release {
-    git {
-        requireBranch = "main"
+        "testImplementation"(group = "org.apache.logging.log4j", name = "log4j-slf4j2-impl", version = log4jVersion)
     }
 }
diff --git a/gradle.properties b/gradle.properties
index 16d3fe6..8ba5706 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,9 +1,10 @@
 version=1.2.1-SNAPSHOT
 org.gradle.caching=true
 org.gradle.parallel=true
-kafkaVersion=3.0.0
-confluentVersion=7.0.1
-junitVersion=5.7.2
-slf4jVersion=1.7.32
-largeMessageVersion=2.3.0
-log4jVersion=2.17.2
+kafkaVersion=3.5.2
+confluentVersion=7.5.1
+junitVersion=5.10.1
+slf4jVersion=2.0.10
+largeMessageVersion=2.6.0
+log4jVersion=2.22.1
+testContainersVersion=1.19.3
diff --git a/gradle/wrapper/gradle-wrapper.jar b/gradle/wrapper/gradle-wrapper.jar
index 5c2d1cf..e708b1c 100644
Binary files a/gradle/wrapper/gradle-wrapper.jar and b/gradle/wrapper/gradle-wrapper.jar differ
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index 1f3fdbc..f42e62f 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -1,5 +1,5 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-6.7.1-all.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-7.6-all.zip
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
diff --git a/gradlew b/gradlew
index b0d6d0a..4f906e0 100755
--- a/gradlew
+++ b/gradlew
@@ -7,7 +7,7 @@
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
 #
-#      http://www.apache.org/licenses/LICENSE-2.0
+#      https://www.apache.org/licenses/LICENSE-2.0
 #
 # Unless required by applicable law or agreed to in writing, software
 # distributed under the License is distributed on an "AS IS" BASIS,
@@ -82,6 +82,7 @@ esac
 
 CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
 
+
 # Determine the Java command to use to start the JVM.
 if [ -n "$JAVA_HOME" ] ; then
     if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
@@ -125,10 +126,11 @@ if $darwin; then
     GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
 fi
 
-# For Cygwin, switch paths to Windows format before running java
-if $cygwin ; then
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
     APP_HOME=`cygpath --path --mixed "$APP_HOME"`
     CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
     JAVACMD=`cygpath --unix "$JAVACMD"`
 
     # We build the pattern for arguments to be converted via cygpath
@@ -154,19 +156,19 @@ if $cygwin ; then
         else
             eval `echo args$i`="\"$arg\""
         fi
-        i=$((i+1))
+        i=`expr $i + 1`
     done
     case $i in
-        (0) set -- ;;
-        (1) set -- "$args0" ;;
-        (2) set -- "$args0" "$args1" ;;
-        (3) set -- "$args0" "$args1" "$args2" ;;
-        (4) set -- "$args0" "$args1" "$args2" "$args3" ;;
-        (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
-        (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
-        (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
-        (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
-        (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
     esac
 fi
 
@@ -175,14 +177,9 @@ save () {
     for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
     echo " "
 }
-APP_ARGS=$(save "$@")
+APP_ARGS=`save "$@"`
 
 # Collect all arguments for the java command, following the shell quoting and substitution rules
 eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
 
-# by default we should be in the correct project dir, but when run from Finder on Mac, the cwd is wrong
-if [ "$(uname)" = "Darwin" ] && [ "$HOME" = "$PWD" ]; then
-  cd "$(dirname "$0")"
-fi
-
 exec "$JAVACMD" "$@"
diff --git a/gradlew.bat b/gradlew.bat
index 9991c50..107acd3 100644
--- a/gradlew.bat
+++ b/gradlew.bat
@@ -5,7 +5,7 @@
 @rem you may not use this file except in compliance with the License.
 @rem You may obtain a copy of the License at
 @rem
-@rem      http://www.apache.org/licenses/LICENSE-2.0
+@rem      https://www.apache.org/licenses/LICENSE-2.0
 @rem
 @rem Unless required by applicable law or agreed to in writing, software
 @rem distributed under the License is distributed on an "AS IS" BASIS,
@@ -29,6 +29,9 @@ if "%DIRNAME%" == "" set DIRNAME=.
 set APP_BASE_NAME=%~n0
 set APP_HOME=%DIRNAME%
 
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
 @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
 set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
 
@@ -37,7 +40,7 @@ if defined JAVA_HOME goto findJavaFromJavaHome
 
 set JAVA_EXE=java.exe
 %JAVA_EXE% -version >NUL 2>&1
-if "%ERRORLEVEL%" == "0" goto init
+if "%ERRORLEVEL%" == "0" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
@@ -51,7 +54,7 @@ goto fail
 set JAVA_HOME=%JAVA_HOME:"=%
 set JAVA_EXE=%JAVA_HOME%/bin/java.exe
 
-if exist "%JAVA_EXE%" goto init
+if exist "%JAVA_EXE%" goto execute
 
 echo.
 echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
@@ -61,28 +64,14 @@ echo location of your Java installation.
 
 goto fail
 
-:init
-@rem Get command-line arguments, handling Windows variants
-
-if not "%OS%" == "Windows_NT" goto win9xME_args
-
-:win9xME_args
-@rem Slurp the command line arguments.
-set CMD_LINE_ARGS=
-set _SKIP=2
-
-:win9xME_args_slurp
-if "x%~1" == "x" goto execute
-
-set CMD_LINE_ARGS=%*
-
 :execute
 @rem Setup the command line
 
 set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
 
+
 @rem Execute Gradle
-"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS%
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
 
 :end
 @rem End local scope for the variables with windows NT shell