diff --git a/requirements.txt b/requirements.txt
index 4c6699e..3dbf977 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ slack-bolt==1.27.0
 requests==2.32.5
 Flask==3.1.3
 pytest==9.0.2
-ruff==0.15.4
+ruff==0.15.8