diff --git a/requirements_dev.txt b/requirements_dev.txt
index 4a52b4b..fcaf037 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,7 +1,7 @@
 pip==8.1.2
 bumpversion==0.5.3
 wheel==0.29.0
-watchdog==0.8.3
+watchdog==0.9.0
 flake8==2.6.0
 tox==2.3.1
 coverage==4.1