diff --git a/requirements-dev.txt b/requirements-dev.txt
index d818569c3a..62ca5e1e79 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -11,7 +11,7 @@ types-requests
 types-setuptools
 types-boto
 types-pytz
-flake8>=3.8.4,<5
+flake8>=3.8.4,<7
 flake8-bugbear>=20.11.1,<21
 black
 isort