diff --git a/requirements/requirements.txt b/requirements/requirements.txt
index e78b9b8d51..32a9b31938 100644
--- a/requirements/requirements.txt
+++ b/requirements/requirements.txt
@@ -6,4 +6,4 @@ ecos == 2.0.14
 pytest == 8.3.5 # For unit test
 pytest-xdist == 3.6.1 # For unit test
 mypy == 1.15.0 # For unit test
-ruff == 0.11.8 # For unit test
+ruff == 0.11.9 # For unit test