diff --git a/ocpp-v1_6-test/pom.xml b/ocpp-v1_6-test/pom.xml
index 982ce3b0..0612ae48 100644
--- a/ocpp-v1_6-test/pom.xml
+++ b/ocpp-v1_6-test/pom.xml
@@ -63,7 +63,7 @@
         <dependency>
             <groupId>org.apache.groovy</groupId>
             <artifactId>groovy</artifactId>
-            <version>4.0.24</version> 
+            <version>5.0.3</version> 
             <scope>test</scope>
         </dependency>
         <dependency>