diff --git a/requirements.txt b/requirements.txt
index 269f59c..ef1eaa0 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 slack-bolt==1.30.0
 pytest==9.1.1
-ruff==0.16.0
+ruff==0.16.5
 slack-cli-hooks==0.3.0
 openai==2.50.0
 anthropic==0.120.2