diff --git a/pom.xml b/pom.xml
index a627981..32b28d1 100644
--- a/pom.xml
+++ b/pom.xml
@@ -137,7 +137,7 @@
             <dependency>
                 <groupId>org.codehaus.groovy</groupId>
                 <artifactId>groovy</artifactId>
-                <version>2.4.15</version>
+                <version>2.4.21</version>
                 <scope>provided</scope>
             </dependency>
             <dependency>