diff --git a/requirements_dev.txt b/requirements_dev.txt
index 4409fec..a5b75b5 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -8,7 +8,7 @@ coverage==4.5.1
 Sphinx==1.7.5
 cryptography==2.2.2
 PyYAML==3.12
-pytest==3.5.0
+pytest==3.6.3
 pytest-runner==4.2
 vcrpy==1.12.0
 twine==1.11.0