diff --git a/tests/requirements.txt b/tests/requirements.txt
index 446044f..5153153 100644
--- a/tests/requirements.txt
+++ b/tests/requirements.txt
@@ -4,7 +4,7 @@ coverage==4.5.1
 cryptography==2.3.1
 PyYAML==3.13
 pytest==3.8.1
-pytest-runner==4.2
+pytest-runner==5.2
 python-dateutil==2.7.3
 matplotlib==3.0.0
 requests==2.19.1