diff --git a/pyproject.toml b/pyproject.toml
index 0f5ca99..e7a8870 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -50,7 +50,7 @@ dynamic = ["version"]
 
 [project.optional-dependencies]
 test =[
-    "flake8~=6.1",
+    "flake8>=6.1,<8.0",
     "pylint~=3.0",
     "pytest~=7.2",
     "pytest-cov~=4.0",