diff --git a/requirements_dev.txt b/requirements_dev.txt
index 300dac8..4231a60 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -1,5 +1,5 @@
 wheel==0.33.6
-watchdog==0.9.0
+watchdog==2.1.1
 flake8==3.7.8
 tox==3.14.1
 coverage==4.5.3