diff --git a/requirements_dev.txt b/requirements_dev.txt
index 9d7da80..a5dac6a 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -8,4 +8,4 @@ Sphinx==1.6.4
 cryptography==2.1.4
 PyYAML==3.12
 pytest==3.3.1
-pytest-runner==3.0
+pytest-runner==5.2