diff --git a/requirements.txt b/requirements.txt
index f381537..7650aab 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,4 +3,4 @@ slack-bolt==1.19.0rc1
 requests==2.32.3
 Flask==3.0.3
 pytest==8.2.2
-ruff==0.5.0
+ruff==0.5.5