diff --git a/langstream-e2e-tests/pom.xml b/langstream-e2e-tests/pom.xml
index 8a98765cc..7a280d2ec 100644
--- a/langstream-e2e-tests/pom.xml
+++ b/langstream-e2e-tests/pom.xml
@@ -52,6 +52,12 @@
       <version>${project.version}</version>
       <scope>test</scope>
     </dependency>
+    <dependency>
+      <groupId>${project.groupId}</groupId>
+      <artifactId>langstream-core</artifactId>
+      <version>${project.version}</version>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>org.apache.kafka</groupId>
       <artifactId>kafka-clients</artifactId>