diff --git a/setup.py b/setup.py
index bebac74c..e59fe4af 100644
--- a/setup.py
+++ b/setup.py
@@ -15,7 +15,7 @@
     'pytest',
     'pytest-cov',
     'pytest-env',
-    'pytest-flask',
+    'pytest-flask==0.11.0',
     'pytest-ordering',
 ]