diff --git a/pyproject.toml b/pyproject.toml
index 7cb37ce16..72f31998a 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,7 +2,7 @@
 name = "perennial"
 version = "2024.0.0"
 dependencies = [
-  "ruff==0.6.3",
+  "ruff==0.6.9",
 ]
 
 [tool.ruff]