diff --git a/go.mod b/go.mod
index c17b9a32..3371e9d2 100644
--- a/go.mod
+++ b/go.mod
@@ -121,7 +121,7 @@ require (
 	go.uber.org/zap v1.17.0 // indirect
 	golang.org/x/crypto v0.0.0-20210921155107-089bfa567519 // indirect
 	golang.org/x/net v0.0.0-20211006190231-62292e806868 // indirect
-	golang.org/x/sys v0.0.0-20211006225509-1a26e0398eed // indirect
+	golang.org/x/sys v0.0.0-20211007075335-d3039528d8ac // indirect
 	golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1 // indirect
 	golang.org/x/text v0.3.7 // indirect
 	golang.org/x/time v0.0.0-20201208040808-7e3f01d25324 // indirect
diff --git a/hook/rockethook/rockethook.go b/hook/rockethook/rockethook.go
index 1ac8cb02..38f53e4a 100644
--- a/hook/rockethook/rockethook.go
+++ b/hook/rockethook/rockethook.go
@@ -7,6 +7,7 @@ import (
 	"log"
 	"net"
 	"net/http"
+	"regexp"
 )
 
 // Message for rocketchat outgoing webhook.
@@ -68,7 +69,6 @@ func (c *Client) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	}
 	msg := Message{}
 	body, err := ioutil.ReadAll(r.Body)
-	log.Println(string(body))
 	if err != nil {
 		log.Println(err)
 		http.NotFound(w, r)
@@ -89,7 +89,11 @@ func (c *Client) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	msg.ChannelName = "#" + msg.ChannelName
 	if c.Token != "" {
 		if msg.Token != c.Token {
-			log.Println("invalid token " + msg.Token + " from " + r.RemoteAddr)
+			if regexp.MustCompile(`[^a-zA-Z0-9]+`).MatchString(msg.Token) {
+				log.Println("invalid token " + msg.Token + " from " + r.RemoteAddr)
+			} else {
+				log.Println("invalid token from " + r.RemoteAddr)
+			}
 			http.NotFound(w, r)
 			return
 		}
diff --git a/vendor/modules.txt b/vendor/modules.txt
index ee3f36dd..3be7583c 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -488,7 +488,7 @@ golang.org/x/oauth2
 golang.org/x/oauth2/clientcredentials
 golang.org/x/oauth2/internal
 golang.org/x/oauth2/microsoft
-# golang.org/x/sys v0.0.0-20211006225509-1a26e0398eed
+# golang.org/x/sys v0.0.0-20211007075335-d3039528d8ac
 ## explicit; go 1.17
 golang.org/x/sys/cpu
 golang.org/x/sys/internal/unsafeheader