diff --git a/requirements/test.txt b/requirements/test.txt
index 59d056c8..ad35a23f 100644
--- a/requirements/test.txt
+++ b/requirements/test.txt
@@ -1,4 +1,4 @@
 # The project's testing dependencies...
-pytest
+pytest==3.3.1
 pytest-cov
 WebTest >= 1.3.1