diff --git a/go.mod b/go.mod
index 9213ca5..c95c234 100644
--- a/go.mod
+++ b/go.mod
@@ -2,9 +2,9 @@ module github.com/emmansun/sm2rsign
 
 go 1.18
 
-require github.com/emmansun/gmsm v0.26.1
+require github.com/emmansun/gmsm v0.27.0
 
 require (
-	golang.org/x/crypto v0.21.0 // indirect
-	golang.org/x/sys v0.18.0 // indirect
+	golang.org/x/crypto v0.23.0 // indirect
+	golang.org/x/sys v0.20.0 // indirect
 )
diff --git a/go.sum b/go.sum
index e719201..1f4aa36 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,6 @@
-github.com/emmansun/gmsm v0.26.1 h1:nLNE+P80RFKuoXgVbAkt/qAq/y+GNu06ciEpsvIc3zo=
-github.com/emmansun/gmsm v0.26.1/go.mod h1:p7FIZFWfCTgQC/AwDQPBAuzZ91788FfsyDFpqglYQYg=
-golang.org/x/crypto v0.21.0 h1:X31++rzVUdKhX5sWmSOFZxx8UW/ldWx55cbf08iNAMA=
-golang.org/x/crypto v0.21.0/go.mod h1:0BP7YvVV9gBbVKyeTG0Gyn+gZm94bibOW5BjDEYAOMs=
-golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4=
-golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
+github.com/emmansun/gmsm v0.27.0 h1:TVzFvWBL8kj/9Gk+KTWgRejmntzbP9iMmm55kFKQ3Tg=
+github.com/emmansun/gmsm v0.27.0/go.mod h1:Iz37uMGt0LG38AsIht1tC3H1xTxoRbVHQghgDVFgs7A=
+golang.org/x/crypto v0.23.0 h1:dIJU/v2J8Mdglj/8rJ6UUOM3Zc9zLZxVZwwxMooUSAI=
+golang.org/x/crypto v0.23.0/go.mod h1:CKFgDieR+mRhux2Lsu27y0fO304Db0wZe70UKqHu0v8=
+golang.org/x/sys v0.20.0 h1:Od9JTbYCk261bKm4M/mw7AklTlFYIa0bIp9BgSm1S8Y=
+golang.org/x/sys v0.20.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=