diff --git a/test/init-scripts/build.gradle b/test/init-scripts/build.gradle
index 23c0673..f379017 100644
--- a/test/init-scripts/build.gradle
+++ b/test/init-scripts/build.gradle
@@ -15,7 +15,7 @@ repositories {
 dependencies {
     testImplementation gradleTestKit()
     testImplementation 'org.spockframework:spock-core:2.1-groovy-3.0'
-    testImplementation('org.spockframework:spock-junit4:2.1-groovy-3.0')
+    testImplementation('org.spockframework:spock-junit4:2.2-groovy-4.0')
 
     testImplementation ('io.ratpack:ratpack-groovy-test:1.9.0') {
         exclude group: 'org.codehaus.groovy', module: 'groovy-all'