diff --git a/requirements_dev.txt b/requirements_dev.txt
index eefdee7..a79976f 100644
--- a/requirements_dev.txt
+++ b/requirements_dev.txt
@@ -2,7 +2,7 @@ pip==23.0
 bump2version==1.0.1
 wheel==0.38.4
 watchdog==2.2.1
-flake8==3.7.8
+flake8==6.0.0
 tox==4.4.4
 coverage==7.1.0
 sphinx>=3.1,<7