diff --git a/requirements.dev.txt b/requirements.dev.txt
index 8e960a9..6c30809 100644
--- a/requirements.dev.txt
+++ b/requirements.dev.txt
@@ -1,4 +1,4 @@
 black==21.9b0
 isort==5.9.3
-flake8==3.9.2
+flake8==4.0.0
 pre-commit==2.15.0