diff --git a/pom.xml b/pom.xml
index 7996009..62d522c 100644
--- a/pom.xml
+++ b/pom.xml
@@ -36,7 +36,7 @@
         <dependency>
             <groupId>org.codehaus.groovy</groupId>
             <artifactId>groovy-all</artifactId>
-            <version>2.4.13</version>
+            <version>2.4.21</version>
             <scope>test</scope>
         </dependency>
     </dependencies>