diff --git a/build.gradle.kts b/build.gradle.kts
index db8c1ae..4bd204f 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -43,7 +43,7 @@ testing {
 
       dependencies {
         implementation("nl.jqno.equalsverifier:equalsverifier:3.19.4")
-        implementation("org.spockframework:spock-core:2.4-groovy-4.0")
+        implementation("org.spockframework:spock-core:2.5-groovy-4.0")
       }
     }