diff --git a/source/general/format_version.json b/source/general/format_version.json
index 573d1725..18328263 100644
--- a/source/general/format_version.json
+++ b/source/general/format_version.json
@@ -3,5 +3,6 @@
   "title": "Format Version",
   "description": "A version that tells minecraft what type of data format can be expected when reading this file.",
   "pattern": "^(1)\\.([0-9]+)\\.([0-9]+)$",
-  "type": "string"
+  "type": "string",
+  "enum": ["1.17.30", "1.17.0", "1.16.0", "1.15.0", "1.14.0", "1.13.0", "1.12.0", "1.10.0", "1.8.0"]
 }