diff --git a/pdf-umbenenner-adapter-out/pom.xml b/pdf-umbenenner-adapter-out/pom.xml
index c9f5a81..c70b8f6 100644
--- a/pdf-umbenenner-adapter-out/pom.xml
+++ b/pdf-umbenenner-adapter-out/pom.xml
@@ -41,6 +41,17 @@
     </dependency>
 
     <!-- Test dependencies -->
+    <dependency>
+      <groupId>org.apache.logging.log4j</groupId>
+      <artifactId>log4j-core</artifactId>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>org.apache.logging.log4j</groupId>
+      <artifactId>log4j-slf4j-impl</artifactId>
+      <version>${log4j.version}</version>
+      <scope>test</scope>
+    </dependency>
     <dependency>
       <groupId>org.junit.jupiter</groupId>
       <artifactId>junit-jupiter</artifactId>