diff --git a/setup.py b/setup.py
index 9793e437..14b50278 100755
--- a/setup.py
+++ b/setup.py
@@ -86,7 +86,7 @@ setup(
        ],
     tests_require=[
         'pytest',
-        'WebTest',
+        'WebTest<=2.0.23',
         'pytest-cov',
         'fakeredis',
         'mock',