diff --git a/.vscode/settings.json b/.vscode/settings.json
index 55f96d6..b1f7d4a 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,6 +1,6 @@
 {
     "[python]": {
-        "editor.defaultFormatter": "ms-python.black-formatter"
+        "editor.defaultFormatter": "mikoz.black-py"
     },
     "python.formatting.provider": "none"
 }
\ No newline at end of file
diff --git a/ktvmanager/lib/checker.py b/ktvmanager/lib/checker.py
index bbdd29b..02b7301 100644
--- a/ktvmanager/lib/checker.py
+++ b/ktvmanager/lib/checker.py
@@ -88,6 +88,7 @@ def validate_account() -> Tuple[Response, int]:
     password = data.get("password")
     expiry_date = data.get("expiry_date")
     stream = data.get("stream")
+    stream_url = data.get("streamURL")
 
     if not all([username, password]):
         return jsonify({"message": "Missing required fields"}), 400
@@ -97,20 +98,46 @@ def validate_account() -> Tuple[Response, int]:
     result = single_account_check(account_data, stream_urls)
 
     if result:
-        if expiry_date and stream and int(result["data"]["user_info"]["exp_date"]) != expiry_date:
+        if result["url"] != stream_url:
+            from ktvmanager.lib.database import update_stream_url
+
+            update_stream_url(result["url"], stream_url)
+            return (
+                jsonify({"message": "Account is valid and updated", "data": result}),
+                200,
+            )
+
+        if (
+            expiry_date
+            and stream
+            and int(result["data"]["user_info"]["exp_date"]) != expiry_date
+        ):
             from ktvmanager.lib.database import update_expiry_date
+
             update_expiry_date(
                 username, stream, result["data"]["user_info"]["exp_date"]
             )
-            return jsonify({"message": "Account is valid and updated", "data": result}), 200
+            return (
+                jsonify({"message": "Account is valid and updated", "data": result}),
+                200,
+            )
 
-        if int(result.get("data", {}).get("user_info", {}).get("max_connections")) and data.get("max_connections") and int(result["data"]["user_info"]["max_connections"]) != data.get("max_connections"):
+        if (
+            int(result.get("data", {}).get("user_info", {}).get("max_connections"))
+            and data.get("max_connections")
+            and int(result["data"]["user_info"]["max_connections"])
+            != data.get("max_connections")
+        ):
             from ktvmanager.lib.database import update_max_connections
+
             update_max_connections(
                 username, stream, int(result["data"]["user_info"]["max_connections"])
             )
-            return jsonify({"message": "Account is valid and updated", "data": result}), 200
-            
+            return (
+                jsonify({"message": "Account is valid and updated", "data": result}),
+                200,
+            )
+
         return jsonify({"message": "Account is valid", "data": result}), 200
     else:
-        return jsonify({"message": "Account is invalid"}), 401
\ No newline at end of file
+        return jsonify({"message": "Account is invalid"}), 401
diff --git a/ktvmanager/lib/database.py b/ktvmanager/lib/database.py
index 0c3e680..d936ae2 100644
--- a/ktvmanager/lib/database.py
+++ b/ktvmanager/lib/database.py
@@ -167,6 +167,18 @@ def update_max_connections(username: str, stream: str, max_connections: int) ->
     _execute_query(query, params)
 
 
+def update_stream_url(new_stream: str, old_stream: str) -> None:
+    """Updates the stream URL of an account.
+
+    Args:
+        new_stream: The stream of the account.
+        old_stream: The new stream URL.
+    """
+    query = "UPDATE userAccounts SET streamURL = %s WHERE streamURL = %s"
+    params = (new_stream, old_stream)
+    _execute_query(query, params)
+
+
 def delete_account(user_id: int) -> Response:
     """Deletes an account for a user.