diff --git a/requirements_dev.txt b/requirements_dev.txt
index 3499ef8..0f43242 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -9,6 +9,6 @@ Sphinx==1.8.3
 cryptography==2.4.1
 PyYAML==3.12
 pytest==4.0.2
-pytest-runner==4.2
+pytest-runner==4.4
 vcrpy==2.0.1
 twine==1.12.1