diff --git a/pyproject.toml b/pyproject.toml
index 281b911..8fd3918 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -21,7 +21,7 @@ typing-extensions = ">=4.13.2"
 pytest = ">=8.3.5"
 pytest-cov = ">=5.0.0"
 tox = ">= 3.9.0"
-flake8 = ">= 4.0.0"
+flake8 = ">=5.0.4"
 types-python-dateutil = ">= 2.8.19.14"
 mypy = ">= 1.5"