diff --git a/go.mod b/go.mod
index 9f8e08f..8184a50 100644
--- a/go.mod
+++ b/go.mod
@@ -22,7 +22,7 @@ require (
 	github.com/mitchellh/go-testing-interface v1.14.1 // indirect
 	github.com/mitchellh/go-wordwrap v1.0.1 // indirect
 	github.com/mitchellh/mapstructure v1.4.1 // indirect
-	github.com/slack-go/slack v0.9.3
+	github.com/slack-go/slack v0.9.4
 	github.com/stretchr/testify v1.7.0
 	github.com/ulikunitz/xz v0.5.10 // indirect
 	golang.org/x/crypto v0.0.0-20210616213533-5ff15b29337e // indirect
diff --git a/go.sum b/go.sum
index 2af305d..a410bf1 100644
--- a/go.sum
+++ b/go.sum
@@ -350,8 +350,8 @@ github.com/sergi/go-diff v1.1.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNX
 github.com/sergi/go-diff v1.2.0 h1:XU+rvMAioB0UC3q1MFrIQy4Vo5/4VsRDQQXHsEya6xQ=
 github.com/sergi/go-diff v1.2.0/go.mod h1:STckp+ISIX8hZLjrqAeVduY0gWCT9IjLuqbuNXdaHfM=
 github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
-github.com/slack-go/slack v0.9.3 h1:H1UwldF1zWQakjaSymbHMgG3Pg1BiClez/a7JRLdxKc=
-github.com/slack-go/slack v0.9.3/go.mod h1:wWL//kk0ho+FcQXcBTmEafUI5dz4qz5f4mMk8oIkioQ=
+github.com/slack-go/slack v0.9.4 h1:C+FC3zLxLxUTQjDy2RZeMHYon005zsCROiZNWVo+opQ=
+github.com/slack-go/slack v0.9.4/go.mod h1:wWL//kk0ho+FcQXcBTmEafUI5dz4qz5f4mMk8oIkioQ=
 github.com/spf13/pflag v1.0.2/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=