diff --git a/01-environment/docker/artefacts/cookbooks/recipes/custom-udf-and-ksqldb/ksql-udf-string/pom.xml b/01-environment/docker/artefacts/cookbooks/recipes/custom-udf-and-ksqldb/ksql-udf-string/pom.xml
index 74c3a7b..0a77a98 100644
--- a/01-environment/docker/artefacts/cookbooks/recipes/custom-udf-and-ksqldb/ksql-udf-string/pom.xml
+++ b/01-environment/docker/artefacts/cookbooks/recipes/custom-udf-and-ksqldb/ksql-udf-string/pom.xml
@@ -24,7 +24,7 @@
     </repositories>
 
     <properties>
-        <assertj.version>3.11.1</assertj.version>
+        <assertj.version>3.27.7</assertj.version>
         <confluent.version>6.0.0</confluent.version>
         <exec.mainClass>com.gschmutz.ksql.udf.geohash.ThisIsIgnored</exec.mainClass>
         <java.version>1.8</java.version>