diff --git a/requirements.txt b/requirements.txt
index 3e1ac4b..2b51838 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ slack-bolt==1.30.0
 requests==2.34.2
 Flask==3.1.3
 pytest==9.1.1
-ruff==0.16.5
+ruff==0.16.9