diff --git a/requirements_dev.txt b/requirements_dev.txt
index b5960d8..bda9408 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -9,4 +9,4 @@ coverage==4.2
 Sphinx==1.4.8
 cryptography==1.5.2
 PyYAML==3.12
-pytest==3.0.3
+pytest==3.1.1