diff --git a/requirements_dev.txt b/requirements_dev.txt
index 4c3502b..71cf3d4 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -7,7 +7,7 @@ tox==3.7.0
 coverage==4.5.2
 Sphinx==1.8.4
 twine==1.13.0
-pytest==4.2.1
+pytest==4.6.3
 pytest-runner==4.4
 pytest-mock==1.10.1
 mock==2.0.0