diff --git a/requirements_dev.txt b/requirements_dev.txt
index 014b44a0..9aa27869 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -8,5 +8,5 @@ coverage==4.1
 Sphinx==1.4.8
 cryptography==1.7
 PyYAML==3.11
-pytest==2.9.2
+pytest==3.3.1
 pytest-runner==2.11.1