diff --git a/pyproject.toml b/pyproject.toml
index ef8c3e4..1680a75 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -29,7 +29,7 @@ python = "^3.7"
 black = {version = "^21.9b0", allow-prereleases = true}
 mypy = "^0.930"
 isort = "^5.9.3"
-flake8 = "^4.0.1"
+flake8 = "^5.0.1"
 pytest = "^6.2.5"
 pytest-cov = "^3.0.0"
 pre-commit = "^2.15.0"