diff --git a/requirements_dev.txt b/requirements_dev.txt
index e0c2b65..1dbda39 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -2,9 +2,9 @@ pip>=18.1
 bumpversion==0.6.0
 wheel==0.37.1
 watchdog==2.1.6
-flake8==4.0.1
+flake8==6.1.0
 watchdog==2.1.6
-flake8==3.9.2
+flake8==6.1.0
 tox==3.24.5
 coverage==6.3.2
 Sphinx==4.4.0