diff --git a/requirements_dev.txt b/requirements_dev.txt
index bf065bf..2e15b2a 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -2,7 +2,7 @@ pip==19.3.1
 bumpversion==0.6.0
 wheel==0.34.2
 watchdog==0.9.0
-flake8==3.8.2
+flake8==3.8.3
 tox==3.15.0
 coverage==5.0.4
 Sphinx==3.0.4