diff --git a/build.gradle.kts b/build.gradle.kts
index 87f2bec..6d2d85c 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -14,7 +14,7 @@ java {
 dependencies {
     implementation("org.ow2.asm:asm:9.7.1")
 
-    testImplementation("org.spockframework:spock-core:2.3-groovy-3.0")
+    testImplementation("org.spockframework:spock-core:2.3-groovy-4.0")
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 }