diff --git a/pom.xml b/pom.xml
index 648e7d5..af5006a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -1067,7 +1067,7 @@
             <dependency>
                 <groupId>org.codehaus.groovy</groupId>
                 <artifactId>groovy</artifactId>
-                <version>2.4.4</version>
+                <version>2.4.21</version>
             </dependency>