diff --git a/tests/test_helpers.py b/tests/test_helpers.py
index 077cb432..586011f5 100644
--- a/tests/test_helpers.py
+++ b/tests/test_helpers.py
@@ -1,10 +1,9 @@
 import io
 import os
-
 import pytest
 import werkzeug.exceptions
 
-import flask
+from flask import Flask
 from flask.helpers import get_debug_flag