diff --git a/requirements.txt b/requirements.txt
index 784b40a..33c91c3 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@
 numpy==2.2.3
 pytest==8.4.2
 pytest-cov==7.1.0
-ruff==0.15.4
+ruff==0.15.9