diff --git a/build.gradle b/build.gradle
index 7834972..b00dde1 100644
--- a/build.gradle
+++ b/build.gradle
@@ -50,7 +50,7 @@ dependencies {
     compile "com.graphql-java:graphql-java:20.2"
 
     testImplementation 'org.spockframework:spock-core:1.3-groovy-2.5'
-    testImplementation('org.codehaus.groovy:groovy:2.5.13')
+    testImplementation('org.codehaus.groovy:groovy:3.0.17')
 
 }