diff --git a/pyproject.toml b/pyproject.toml
index 799a819..676bc22 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -40,7 +40,7 @@ typing-extensions = ">=3.8"
 [tool.poetry.dev-dependencies]
 flake8-black = "^0.3.2"
 black = "^22.1.0"
-flake8 = "^4.0.1"
+flake8 = "^5.0.4"
 pytest = "^7.0.1"
 pytest-cov = "^3.0.0"
 mypy = "^0.971"