diff --git a/pyproject.toml b/pyproject.toml
index 584837d..925152f 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -52,7 +52,7 @@ dev = [
     "cogapp",
     "docformatter",
     "mdeq[test]",
-    "ruff==0.15.4",
+    "ruff==0.15.5",
 ]
 
 [tool.pytest.ini_options]