diff --git a/pyproject.toml b/pyproject.toml
index 2de0b8b22be3bbe36787f00f83410a0dcfdf7e0e..2dc5b8bedca639868adedec2ace0f07a3bdb42bf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,7 +20,7 @@ nfcpy = "^1.0.4"
 
 [tool.poetry.dev-dependencies]
 safety = "^2.0.0"
-flake8 = "^4.0.0"
+flake8 = "^6.0.0"
 flake8-fixme = "^1.1.1"
 flake8-mypy = "^17.8.0"
 flake8-bandit = "^4.0.0"