diff --git a/pyproject.toml b/pyproject.toml
index 9a211b66..4d2c7b1b 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -53,7 +53,7 @@ pytest = "^8.0.2"
 ipdb = "^0.13.9"
 black = ">=24.2,<26.0"
 isort = ">=5.9.3,<8.0.0"
-flake8 = "^5.0.4"
+flake8 = ">=5.0.4,<8.0.0"
 bandit = "^1.7.4"
 coverage = "^7.1"
 pytest-cov = ">=5,<8"