Bump groovy from 3.0.3 to 3.0.4

diff --git a/pom.xml b/pom.xml
index 170e62f..3bced50 100644
--- a/pom.xml
+++ b/pom.xml
@@ -269,7 +269,7 @@
               <dependency>
                 <groupId>org.codehaus.groovy</groupId>
                 <artifactId>groovy</artifactId>
-                <version>3.0.3</version>
+                <version>3.0.4</version>
               </dependency>
               <dependency>
                 <groupId>org.codehaus.gmaven.runtime</groupId>