diff --git a/requirements_dev.txt b/requirements_dev.txt
index f9aca75..5091c0a 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -10,5 +10,5 @@ pytz==2019.3
 PyYAML==5.1.2
 tox==3.14.0
 tox-pyenv==1.1.0
-watchdog==0.9.0
+watchdog==4.0.1
 wheel==0.33.6