diff --git a/pom.xml b/pom.xml
index 01b1b40..b78ac1b 100644
--- a/pom.xml
+++ b/pom.xml
@@ -64,7 +64,7 @@
             <dependency>
                 <groupId>org.codehaus.groovy</groupId>
                 <artifactId>groovy</artifactId>
-                <version>2.2.2</version>
+                <version>2.4.21</version>
                 <optional>true</optional>
             </dependency>