diff --git a/requirements.txt b/requirements.txt
index 739c4ce..c459c8d 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -2,4 +2,4 @@ slack-bolt==1.28.0
 requests==2.33.1
 Flask==3.1.3
 pytest==9.0.3
-ruff==0.15.12
+ruff==0.15.15