diff --git a/gradle.properties b/gradle.properties
index 9b8ec28..600495d 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -2,5 +2,5 @@
 grailsVersion=5.3.0
 grailsGradlePluginVersion=5.3.0
 scaffoldingCoreVersion=2.1.0
-spockVersion=2.3-groovy-3.0
+spockVersion=2.3-groovy-4.0
 projectVersion=3.0.0-SNAPSHOT