diff --git a/build.gradle.kts b/build.gradle.kts
index eb49fc1..6e7d304 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -12,7 +12,7 @@ java {
 }
 
 dependencies {
-    testImplementation("org.spockframework:spock-core:2.1-groovy-3.0")
+    testImplementation("org.spockframework:spock-core:2.3-groovy-4.0")
     testImplementation("org.gradle.exemplar:samples-check:1.0.2")
     testRuntimeOnly("org.junit.vintage:junit-vintage-engine")
 }