diff --git a/pom.xml b/pom.xml
index e347d64..43f7bef 100644
--- a/pom.xml
+++ b/pom.xml
@@ -111,7 +111,7 @@
         <dependency>
             <groupId>org.spockframework</groupId>
             <artifactId>spock-core</artifactId>
-            <version>2.0-groovy-3.0</version>
+            <version>2.2-groovy-4.0</version>
             <scope>test</scope>
         </dependency>
     </dependencies>