diff --git a/requirements_dev.txt b/requirements_dev.txt
index 3719884..631e3d9 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,7 +1,7 @@
 -e .
 pip==19.1.1
 bumpversion==0.5.3
-wheel==0.33.4
+wheel==0.33.6
 watchdog==0.9.0
 flake8==3.7.7
 pytest-mypy==0.3.2