diff --git a/requirements_test.txt b/requirements_test.txt
index 3fc5e7b..25bdbaa 100644
--- a/requirements_test.txt
+++ b/requirements_test.txt
@@ -1,5 +1,5 @@
 vcrpy==1.11.1
-pytest
+pytest==3.1.3
 pytest-pep8
 pytest-flakes
 nose