diff --git a/requirements.txt b/requirements.txt
index e19d231..237adc5 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-slack-bolt==1.20.1
+slack-bolt==1.21.2
 pytest
 flake8==7.1.1
 black==24.10.0