diff --git a/system.json b/system.json
index bb8d5ea..bec4451 100644
--- a/system.json
+++ b/system.json
@@ -18,6 +18,11 @@
     }
   ],
 
+  "compatibility": {
+    "minimum": "12",
+    "verified": "12"
+  },
+
   "version": "0.1.5",
   "manifest": "https://gitea.ammerhai.com/foundry/dsa-4th-edition/releases/download/latest/system.json",
   "download": "https://gitea.ammerhai.com/foundry/dsa-4th-edition/releases/download/test2/dsa-4th-edition.zip"