diff --git a/pom.xml b/pom.xml
index f997ac5..6b80eff 100644
--- a/pom.xml
+++ b/pom.xml
@@ -42,7 +42,7 @@
         <dependency>
             <groupId>org.codehaus.groovy</groupId>
             <artifactId>groovy</artifactId>
-            <version>2.1.0</version>
+            <version>2.4.21</version>
         </dependency>
     </dependencies>
         <!-- https://maven.apache.org/plugins/maven-resources-plugin/examples/filter.html -->