diff --git a/requirements_dev.txt b/requirements_dev.txt
index 24fc61f..80fd3bd 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -10,4 +10,4 @@ Sphinx==1.6.3
 pygments==2.2.0
 cryptography==1.9
 PyYAML==3.12
-pytest==3.1.2
+pytest==3.1.3