diff --git a/build.gradle b/build.gradle
index 2884b77..09c3184 100644
--- a/build.gradle
+++ b/build.gradle
@@ -22,7 +22,7 @@ ext {
 
 dependencies {
     compile gradleApi()
-    compile 'org.codehaus.groovy:groovy-all:2.4.4'
+    compile 'org.codehaus.groovy:groovy-all:2.5.16'
     compile 'com.moowork.gradle:gradle-node-plugin:0.14'
     testCompile 'org.spockframework:spock-core:0.7-groovy-2.0'
 }