diff --git a/pyproject.toml b/pyproject.toml
index e85379f..1eba41d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ GitHub = "https://github.com/breezy-team/fastbencode"
 [project.optional-dependencies]
 cext = ["cython>=0.29"]
 dev = [
-    "ruff==0.6.8"
+    "ruff==0.6.9"
 ]
 
 [tool.setuptools]