diff --git a/requirements_dev.txt b/requirements_dev.txt
index f6413e5..9b6fcd0 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -12,7 +12,7 @@ PyYAML==4.2b1
 
 bumpversion==0.5.3
 wheel==0.29.0
-watchdog==0.8.3
+watchdog==4.0.0
 pytest==3.2.1
 pytest-runner==2.11.1
 tox==2.7.0