diff --git a/pom.xml b/pom.xml
index ab2c31d..b8d02bd 100644
--- a/pom.xml
+++ b/pom.xml
@@ -96,7 +96,7 @@
         <dependency>
             <groupId>org.codehaus.groovy</groupId>
             <artifactId>groovy</artifactId>
-            <version>2.4.1</version>
+            <version>2.4.21</version>
             <scope>test</scope>
         </dependency>
     </dependencies>