diff --git a/pom.xml b/pom.xml
index eb202b3..3941686 100644
--- a/pom.xml
+++ b/pom.xml
@@ -59,7 +59,7 @@
         <dependency>
             <groupId>org.codehaus.groovy</groupId>
             <artifactId>groovy-all</artifactId>
-            <version>2.4.6</version>
+            <version>2.4.21</version>
         </dependency>
     </dependencies>