diff --git a/java/neoforge/egg-neo-forge.json b/java/neoforge/egg-neo-forge.json
index 3c122ddd..3bd8055a 100644
--- a/java/neoforge/egg-neo-forge.json
+++ b/java/neoforge/egg-neo-forge.json
@@ -68,7 +68,7 @@
             "user_editable": true,
             "rules": [
                 "nullable",
-                "regex:/^[0-9\\.\\-]+$/"
+                "regex:/^[0-9\.\-]+(?:-(?:alpha(?:\.?.*)|beta))?$/"
             ]
         }
     ]