diff --git a/requirements_dev.txt b/requirements_dev.txt
index 34b21da..b10df1a 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,7 +1,7 @@
 pip==21.3
 bump2version==1.0.1
 wheel==0.36.2
-watchdog==2.1.6
+watchdog==2.1.9
 flake8==4.0.1
 tox==3.24.4
 coverage==6.0.2