diff --git a/build.gradle b/build.gradle
index 8e2246b..3b582fd 100644
--- a/build.gradle
+++ b/build.gradle
@@ -23,7 +23,7 @@ dependencies {
     compileOnly 'com.github.spotbugs:spotbugs-annotations:3.1.2'
 
     // using old groovy because it's more permissive and allow testing more edge cases
-    testImplementation 'org.spockframework:spock-core:1.3-groovy-2.5'
+    testImplementation 'org.spockframework:spock-core:2.3-groovy-4.0'
 }
 
 group = 'ru.vyarus'