diff --git a/dev-requirements.txt b/dev-requirements.txt
index 422c4e8..7769e65 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -8,6 +8,6 @@ pytest-cov~=6.0.0
 pytest-asyncio~=0.25.3
 httpx~=0.28.1
 
-ruff~=0.9.4
+ruff~=0.9.9
 
 toml