diff --git a/requirements.txt b/requirements.txt
index 967f73b..823370d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@ werkzeug>=0.14.1
 
 # dev
 pytest==3.3.2
-pytest-runner==3.0
+pytest-runner==4.2
 pytest-asyncio==0.9.0
 coveralls==1.5.1
 pycodestyle==2.4.0