diff --git a/build.gradle b/build.gradle
index 8e9188f..b0d3b5f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -56,6 +56,10 @@ scmVersion {
         prefix = 'ical4j-extensions'
     }
     versionCreator 'versionWithBranch'
+    nextVersion {
+        suffix = 'beta1'
+        separator = '-'
+    }
 }
 
 group = 'org.mnode.ical4j'