diff --git a/requirements_dev.txt b/requirements_dev.txt
index 6237eb4..913a68a 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -2,7 +2,7 @@ pip==20.0.2
 bump2version==1.0.0
 wheel==0.34.2
 watchdog==0.10.2
-flake8==3.7.9
+flake8==3.8.3
 tox==3.14.6
 coverage==5.1
 Sphinx==3.0.1