diff --git a/build.gradle b/build.gradle
index caa97b5..bf23347 100644
--- a/build.gradle
+++ b/build.gradle
@@ -41,7 +41,7 @@ dependencies {
     implementation 'org.codehaus.groovy:groovy-all:3.0.17'
     implementation 'commons-io:commons-io:[2.7,3)'
     testImplementation 'org.spockframework:spock-core:2.3-groovy-3.0'
-    testImplementation 'org.spockframework:spock-junit4:2.3-groovy-3.0'
+    testImplementation 'org.spockframework:spock-junit4:2.3-groovy-4.0'
     testImplementation 'com.github.stefanbirkner:system-rules:[1.18,2)'
     testImplementation 'net.bytebuddy:byte-buddy:[1.10.19,2)'
 }