diff --git a/pyproject.toml b/pyproject.toml
index 08c48fe..6102fc3 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -35,7 +35,7 @@ tests = [
     "mypy~=1.13",
     "pytest~=8.3",
     "pytest-cov>=5,<7",
-    "ruff~=0.7.1",
+    "ruff>=0.7.1,<0.9.0",
     "types-requests~=2.32",
 ]
 experiment = [