diff --git a/go.mod b/go.mod
index 8e27616..166b03d 100644
--- a/go.mod
+++ b/go.mod
@@ -10,7 +10,7 @@ require (
 	github.com/go-logfmt/logfmt v0.4.0 // indirect
 	github.com/go-stack/stack v1.8.0 // indirect
 	github.com/gorilla/mux v1.7.0
-	github.com/gorilla/websocket v1.4.0 // indirect
+	github.com/gorilla/websocket v1.4.1 // indirect
 	github.com/kamaln7/envy v1.1.0
 	github.com/kr/pretty v0.1.0 // indirect
 	github.com/lusis/go-slackbot v0.0.0-20180109053408-401027ccfef5 // indirect
diff --git a/go.sum b/go.sum
index 1332d5f..89a0cbe 100644
--- a/go.sum
+++ b/go.sum
@@ -14,8 +14,8 @@ github.com/go-stack/stack v1.8.0 h1:5SgMzNM5HxrEjV0ww2lTmX6E2Izsfxas4+YHWRs3Lsk=
 github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
 github.com/gorilla/mux v1.7.0 h1:tOSd0UKHQd6urX6ApfOn4XdBMY6Sh1MfxV3kmaazO+U=
 github.com/gorilla/mux v1.7.0/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
-github.com/gorilla/websocket v1.4.0 h1:WDFjx/TMzVgy9VdMMQi2K2Emtwi2QcUQsztZ/zLaH/Q=
-github.com/gorilla/websocket v1.4.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
+github.com/gorilla/websocket v1.4.1 h1:q7AeDBpnBk8AogcD4DSag/Ukw/KV+YhzLj2bP5HvKCM=
+github.com/gorilla/websocket v1.4.1/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/kamaln7/envy v1.1.0 h1:4OD5lCm+4HP7UsZ6WrYzBGzcmHUHWFPSzfdusioPQCo=
 github.com/kamaln7/envy v1.1.0/go.mod h1:q4kZFeEZ82PMbkSSr96B2lZRRMEuX9t6aP8nXMNwNCA=
 github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515 h1:T+h1c/A9Gawja4Y9mFVWj2vyii2bbUNDw3kt9VxK2EY=