diff --git a/build.gradle b/build.gradle
index 854f851..9bdf75a 100644
--- a/build.gradle
+++ b/build.gradle
@@ -22,7 +22,7 @@ dependencies {
     implementation 'com.intellij:annotations:12.0'
 
     testImplementation 'net.coobird:thumbnailator:0.4.8'
-    testImplementation 'org.codehaus.groovy:groovy-all:2.4.6'
+    testImplementation 'org.codehaus.groovy:groovy-all:3.0.15'
     testImplementation 'org.spockframework:spock-core:1.0-groovy-2.4'
 
 }