diff --git a/requirements_dev.txt b/requirements_dev.txt
index c973431..76c6504 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -2,7 +2,7 @@ pip==20.1.1
 bump2version==0.5.10
 wheel==0.34.2
 watchdog==0.9.0
-flake8==3.7.7
+flake8==5.0.3
 tox==3.11.1
 coverage==4.5.3
 twine==3.2.0