diff --git a/requirements_dev.txt b/requirements_dev.txt
index 3719884..1532d30 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -10,7 +10,7 @@ coverage==4.5.3
 Sphinx==2.1.0
 twine==1.13.0
 pytest==4.6.0
-pytest-runner==5.1
+pytest-runner==5.2
 recommonmark==0.5.0
 sphinx-click==2.1.0
 sphinx-rtd-theme == 0.4.3