diff --git a/streams-bootstrap-core/src/test/java/com/bakdata/kafka/ImprovedStreamsConfigTest.java b/streams-bootstrap-core/src/test/java/com/bakdata/kafka/ImprovedStreamsConfigTest.java
index 07f3239d..29c6ff6a 100644
--- a/streams-bootstrap-core/src/test/java/com/bakdata/kafka/ImprovedStreamsConfigTest.java
+++ b/streams-bootstrap-core/src/test/java/com/bakdata/kafka/ImprovedStreamsConfigTest.java
@@ -24,8 +24,6 @@
 
 package com.bakdata.kafka;
 
-import static org.assertj.core.api.Assertions.assertThat;
-
 import java.util.List;
 import java.util.Map;
 import org.apache.kafka.streams.StreamsConfig;