diff --git a/pyproject.toml b/pyproject.toml
index ef468ef..885efe9 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -33,7 +33,7 @@ GitHub = "https://github.com/breezy-team/merge3"
 
 [project.optional-dependencies]
 "dev" = [
-    "ruff==0.5.2"
+    "ruff==0.5.4"
 ]
 
 [tool.setuptools]