diff --git a/requirements-dev.txt b/requirements-dev.txt
index f92821a..7957ee9 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -7,6 +7,6 @@ tox>=1.8.1
 pytest>=2.6.4
 pytest-django>=2.8.0
 pytest-pythonpath>=0.3
-pytest-warnings
+pytest-warnings==0.2.0
 pytest-cov>=2.2.1
 mock>=1