diff --git a/pyproject.toml b/pyproject.toml
index dc2f6f2..45b9324 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -38,7 +38,7 @@ black = [
     "black==26.3.1",
 ]
 ruff = [
-    "ruff==0.15.8",
+    "ruff==0.15.9",
 ]
 
 [project.scripts]
diff --git a/requirements_ruff.txt b/requirements_ruff.txt
index 3290a6c..210fd64 100644
--- a/requirements_ruff.txt
+++ b/requirements_ruff.txt
@@ -1 +1 @@
-ruff==0.15.8
+ruff==0.15.9