Upgrading Groovy
diff --git a/pom.xml b/pom.xml
index 806bc98..6ca582a 100644
--- a/pom.xml
+++ b/pom.xml
@@ -424,7 +424,7 @@
 
     <cocoon.version>3.0.0-alpha-3</cocoon.version>
 
-    <groovy.version>4.0.0-alpha-3</groovy.version>
+    <groovy.version>4.0.0-beta-1</groovy.version>
 
     <flowable.version>6.7.0</flowable.version>