diff --git a/requirements.txt b/requirements.txt
index 2761b42..a2f3a62 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,3 @@
-slack_bolt>=1.18.0,<2.0
+slack_bolt>=1.28.0,<2.0
 boto3>=1.43.2
 requests>=2.31.0