diff --git a/go.mod b/go.mod
index e0e958f..13f19f6 100644
--- a/go.mod
+++ b/go.mod
@@ -10,7 +10,7 @@ require (
 	github.com/jrallison/go-workers v0.0.0-20180112190529-dbf81d0b75bb
 	github.com/k0kubun/pp v3.0.1+incompatible
 	github.com/sirupsen/logrus v1.9.4
-	github.com/slack-go/slack v0.20.0
+	github.com/slack-go/slack v0.21.0
 	github.com/thoas/go-funk v0.9.3
 	golang.org/x/oauth2 v0.36.0
 )
diff --git a/go.sum b/go.sum
index bc2fc70..04bf97c 100644
--- a/go.sum
+++ b/go.sum
@@ -60,8 +60,8 @@ github.com/rogpeppe/go-internal v1.9.0 h1:73kH8U+JUqXU8lRuOHeVHaa/SZPifC7BkcraZV
 github.com/rogpeppe/go-internal v1.9.0/go.mod h1:WtVeX8xhTBvf0smdhujwtBcq4Qrzq/fJaraNFVN+nFs=
 github.com/sirupsen/logrus v1.9.4 h1:TsZE7l11zFCLZnZ+teH4Umoq5BhEIfIzfRDZ1Uzql2w=
 github.com/sirupsen/logrus v1.9.4/go.mod h1:ftWc9WdOfJ0a92nsE2jF5u5ZwH8Bv2zdeOC42RjbV2g=
-github.com/slack-go/slack v0.20.0 h1:gbDdbee8+Z2o+DWx05Spq3GzbrLLleiRwHUKs+hZLSU=
-github.com/slack-go/slack v0.20.0/go.mod h1:K81UmCivcYd/5Jmz8vLBfuyoZ3B4rQC2GHVXHteXiAE=
+github.com/slack-go/slack v0.21.0 h1:TAGnZYFp79LAG/oqFzYhFJ9LwEwXJ93heCkPvwjxc7o=
+github.com/slack-go/slack v0.21.0/go.mod h1:K81UmCivcYd/5Jmz8vLBfuyoZ3B4rQC2GHVXHteXiAE=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
 github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=