diff --git a/app.py b/app.py
index c04add1..e683cbd 100644
--- a/app.py
+++ b/app.py
@@ -53,7 +53,7 @@ class Post(Resource):
                 }
                 return _post, 200
 
-        return "Post not found", 400
+        return "Post not found", 404
 
 class Posts(Resource):