diff --git a/pom.xml b/pom.xml
index ddd2c98..694b19d 100644
--- a/pom.xml
+++ b/pom.xml
@@ -39,7 +39,7 @@
         <dependency>
             <groupId>org.codehaus.groovy</groupId>
             <artifactId>groovy-all</artifactId>
-            <version>2.4.16</version>
+            <version>2.4.21</version>
             <scope>provided</scope>
         </dependency>
         <dependency>