diff --git a/example/sample-external-task-process-app/pom.xml b/example/sample-external-task-process-app/pom.xml
index 329438c6a..9beb46888 100644
--- a/example/sample-external-task-process-app/pom.xml
+++ b/example/sample-external-task-process-app/pom.xml
@@ -118,7 +118,7 @@
 		<dependency>
 		  <groupId>org.codehaus.groovy</groupId>
 		  <artifactId>groovy-all</artifactId>
-		  <version>2.4.21</version>
+		  <version>3.0.20</version>
 		  <scope>test</scope>
 		</dependency>
   </dependencies>