diff --git a/.tool-versions b/.tool-versions
index 10482aa..cd53585 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,3 +1,3 @@
 java temurin-17.0.7+7
-quarkus 2.16.3.Final
+quarkus 3.0.3.Final
 gradle 7.5.1
diff --git a/CHANGELOG.md b/CHANGELOG.md
index faeb632..d7f689c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,7 +16,7 @@ to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 ### Internal
 
 - Bump bolt-socket-mode from 1.27.2 to 1.29.2 (#121, #131, #133, #134, #136, #137).
-- Bump quarkus from 2.15.2.Final to 2.16.3.Final (#122, #125, #128, #130).
+- Bump quarkus from 2.15.2.Final to 3.0.3.Final (#122, #125, #128, #130, #140).
 - Bump com.diffplug.spotless from 6.12.1 to 6.18.0 (#123, #124, #126, #127, #129, #132, #135).
 - Bump temurin from 17.0.5+8 to 17.0.6+10 (#128).
 - Bump bolt-socket-mode from 1.27.3 to 1.28.1 (#131, #133).
diff --git a/gradle.properties b/gradle.properties
index ed83e85..c7c528d 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,9 +1,9 @@
 # Gradle properties
 quarkusPluginId=io.quarkus
-quarkusPluginVersion=2.16.3.Final
+quarkusPluginVersion=3.0.3.Final
 quarkusPlatformGroupId=io.quarkus.platform
 quarkusPlatformArtifactId=quarkus-bom
-quarkusPlatformVersion=2.16.3.Final
+quarkusPlatformVersion=3.0.3.Final
 
 # Quarkus properties
 quarkus.package.type=uber-jar
diff --git a/src/main/java/com/lescastcodeurs/bot/GenerateShowNotesHandler.java b/src/main/java/com/lescastcodeurs/bot/GenerateShowNotesHandler.java
index 77a0a39..e6971b6 100644
--- a/src/main/java/com/lescastcodeurs/bot/GenerateShowNotesHandler.java
+++ b/src/main/java/com/lescastcodeurs/bot/GenerateShowNotesHandler.java
@@ -14,10 +14,10 @@
 import io.quarkus.qute.Location;
 import io.quarkus.qute.Template;
 import io.quarkus.vertx.ConsumeEvent;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
 import java.time.LocalDateTime;
 import java.util.List;
-import javax.enterprise.context.ApplicationScoped;
-import javax.inject.Inject;
 import org.eclipse.microprofile.config.inject.ConfigProperty;
 
 /** Handles {@link SlackBotAction#GENERATE_SHOW_NOTES} commands. */
diff --git a/src/main/java/com/lescastcodeurs/bot/GenerateShowNotesSummaryHandler.java b/src/main/java/com/lescastcodeurs/bot/GenerateShowNotesSummaryHandler.java
index 506754f..66fe1ba 100644
--- a/src/main/java/com/lescastcodeurs/bot/GenerateShowNotesSummaryHandler.java
+++ b/src/main/java/com/lescastcodeurs/bot/GenerateShowNotesSummaryHandler.java
@@ -7,10 +7,10 @@
 import com.lescastcodeurs.bot.slack.SlackMentionEvent;
 import com.lescastcodeurs.bot.slack.SlackThread;
 import io.quarkus.vertx.ConsumeEvent;
+import jakarta.enterprise.context.ApplicationScoped;
+import jakarta.inject.Inject;
 import java.time.LocalDateTime;
 import java.util.List;
-import javax.enterprise.context.ApplicationScoped;
-import javax.inject.Inject;
 
 /** Handles {@link SlackBotAction#GENERATE_SHOW_NOTES_SUMMARY} commands. */
 @ApplicationScoped
diff --git a/src/main/java/com/lescastcodeurs/bot/conferences/ConferencesClient.java b/src/main/java/com/lescastcodeurs/bot/conferences/ConferencesClient.java
index ea65497..0cfd3b9 100644
--- a/src/main/java/com/lescastcodeurs/bot/conferences/ConferencesClient.java
+++ b/src/main/java/com/lescastcodeurs/bot/conferences/ConferencesClient.java
@@ -6,6 +6,7 @@
 import static org.slf4j.LoggerFactory.getLogger;
 
 import com.lescastcodeurs.bot.MarkdownSerializable;
+import jakarta.enterprise.context.ApplicationScoped;
 import java.io.IOException;
 import java.io.UncheckedIOException;
 import java.net.URI;
@@ -16,7 +17,6 @@
 import java.time.Duration;
 import java.util.List;
 import java.util.Set;
-import javax.enterprise.context.ApplicationScoped;
 import org.eclipse.microprofile.config.inject.ConfigProperty;
 import org.slf4j.Logger;
 
diff --git a/src/main/java/com/lescastcodeurs/bot/github/GitHubClient.java b/src/main/java/com/lescastcodeurs/bot/github/GitHubClient.java
index b7a3e0a..a343447 100644
--- a/src/main/java/com/lescastcodeurs/bot/github/GitHubClient.java
+++ b/src/main/java/com/lescastcodeurs/bot/github/GitHubClient.java
@@ -6,6 +6,7 @@
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import jakarta.enterprise.context.ApplicationScoped;
 import java.io.IOException;
 import java.io.UncheckedIOException;
 import java.net.URI;
@@ -19,7 +20,6 @@
 import java.util.Map;
 import java.util.Optional;
 import java.util.Set;
-import javax.enterprise.context.ApplicationScoped;
 import org.eclipse.microprofile.config.inject.ConfigProperty;
 
 @ApplicationScoped
diff --git a/src/main/java/com/lescastcodeurs/bot/slack/SlackClient.java b/src/main/java/com/lescastcodeurs/bot/slack/SlackClient.java
index c3f8299..d6937fc 100644
--- a/src/main/java/com/lescastcodeurs/bot/slack/SlackClient.java
+++ b/src/main/java/com/lescastcodeurs/bot/slack/SlackClient.java
@@ -15,12 +15,12 @@
 import com.slack.api.methods.request.conversations.ConversationsInfoRequest;
 import com.slack.api.methods.request.conversations.ConversationsRepliesRequest;
 import com.slack.api.model.Message;
+import jakarta.enterprise.context.ApplicationScoped;
 import java.io.IOException;
 import java.io.UncheckedIOException;
 import java.util.Comparator;
 import java.util.List;
 import java.util.function.Predicate;
-import javax.enterprise.context.ApplicationScoped;
 import org.eclipse.microprofile.config.inject.ConfigProperty;
 import org.slf4j.Logger;