diff --git a/requirements-dev.txt b/requirements-dev.txt
index 5ace90b..e9ab6fd 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -1,7 +1,7 @@
 -e .
 flake8==3.5.0
 async-timeout==3.0.1
-pytest==3.8.2
+pytest==3.9.1
 pytest-cov==2.6.0
 pytest-mock==1.10.0
 coverage==4.5.1