diff --git a/test-project-groovy/build.gradle b/test-project-groovy/build.gradle
index 72f526e..e7738d4 100644
--- a/test-project-groovy/build.gradle
+++ b/test-project-groovy/build.gradle
@@ -30,7 +30,7 @@ subprojects {
         testImplementation "org.junit.jupiter:junit-jupiter-api:$jUnitVersion"
         testImplementation "org.junit.jupiter:junit-jupiter-params:$jUnitVersion"
         testRuntimeOnly "org.junit.jupiter:junit-jupiter-engine:$jUnitVersion"
-        testImplementation("org.spockframework:spock-core:2.0-M5-groovy-3.0") {
+        testImplementation("org.spockframework:spock-core:2.4-M1-groovy-3.0") {
             exclude module: 'groovy-nio'
             exclude module: 'groovy-test'
             exclude module: 'groovy-xml'