diff --git a/vona/federation/__init__.py b/vona/federation/__init__.py
index f21d869..050bc21 100644
--- a/vona/federation/__init__.py
+++ b/vona/federation/__init__.py
@@ -254,7 +254,7 @@ async def invite_user_v2(room, txnId):
 
 	if "event" in invite_data:
 		if "room_version" in invite_data:
-			if invite_data["room_version"] not in ["1", "2"]:
+			if invite_data["room_version"] not in [str(i) for i in range(1, 10)]:
 				return jsonify({
 					"errcode": "M_INCOMPATIBLE_ROOM_VERSION",
 					"error": "Unsupported room version",