diff --git a/go.mod b/go.mod
index d0158a86..43bd23b5 100644
--- a/go.mod
+++ b/go.mod
@@ -9,7 +9,7 @@ require (
 	github.com/xtaci/qpp v1.1.17
 	github.com/xtaci/smux v1.5.32
 	github.com/xtaci/tcpraw v1.2.31
-	golang.org/x/crypto v0.30.0
+	golang.org/x/crypto v0.31.0
 )
 
 require (
diff --git a/go.sum b/go.sum
index 7f3ce9d8..6724f71b 100644
--- a/go.sum
+++ b/go.sum
@@ -82,8 +82,8 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20201012173705-84dcc777aaee/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/crypto v0.30.0 h1:RwoQn3GkWiMkzlX562cLB7OxWvjH1L8xutO2WoJcRoY=
-golang.org/x/crypto v0.30.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
+golang.org/x/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
+golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/lint v0.0.0-20181026193005-c67002cb31c3/go.mod h1:UVdnD1Gm6xHRNCYTkRU2/jEulfH38KcIWyp/GAMgvoE=
 golang.org/x/lint v0.0.0-20190227174305-5b3e6a55c961/go.mod h1:wehouNa3lNwaWXcvxsM5YxQ5yQlVC4a0KAMCusXpPoU=
diff --git a/vendor/modules.txt b/vendor/modules.txt
index 7bcfd07f..dedef8b8 100644
--- a/vendor/modules.txt
+++ b/vendor/modules.txt
@@ -56,7 +56,7 @@ github.com/xtaci/smux
 # github.com/xtaci/tcpraw v1.2.31
 ## explicit; go 1.13
 github.com/xtaci/tcpraw
-# golang.org/x/crypto v0.30.0
+# golang.org/x/crypto v0.31.0
 ## explicit; go 1.20
 golang.org/x/crypto/blowfish
 golang.org/x/crypto/cast5