diff --git a/.travis.yml b/.travis.yml
index fa322e8..f253ba4 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,7 @@ go:
   - "1.14.x"
   - "1.15.x"
   - "1.16.x"
+  - "1.17.x"
 
 sudo: false
 
diff --git a/go.mod b/go.mod
index d9fd5a5..c299276 100644
--- a/go.mod
+++ b/go.mod
@@ -3,6 +3,6 @@ module github.com/emmansun/gmsm
 go 1.14
 
 require (
-	golang.org/x/crypto v0.0.0-20210915214749-c084706c2272
-	golang.org/x/sys v0.0.0-20210917161153-d61c044b1678
+	golang.org/x/crypto v0.0.0-20210921155107-089bfa567519
+	golang.org/x/sys v0.0.0-20211007075335-d3039528d8ac
 )
diff --git a/sm2/p256.go b/sm2/p256.go
index e4d6743..70a0ec9 100644
--- a/sm2/p256.go
+++ b/sm2/p256.go
@@ -1,3 +1,4 @@
+//go:build !amd64
 // +build !amd64
 
 package sm2
diff --git a/sm2/p256_asm.go b/sm2/p256_asm.go
index 1e26bb8..0455cb9 100644
--- a/sm2/p256_asm.go
+++ b/sm2/p256_asm.go
@@ -7,7 +7,7 @@
 //                          256-bit primes"
 // https://link.springer.com/article/10.1007%2Fs13389-014-0090-x
 // https://eprint.iacr.org/2013/816.pdf
-
+//go:build amd64
 // +build amd64
 
 package sm2
diff --git a/sm2/p256_asm_test.go b/sm2/p256_asm_test.go
index 8f9cb62..b74f793 100644
--- a/sm2/p256_asm_test.go
+++ b/sm2/p256_asm_test.go
@@ -1,3 +1,4 @@
+//go:build amd64
 // +build amd64
 
 package sm2
diff --git a/sm2/p256_generic.go b/sm2/p256_generic.go
index b805078..aaf34e6 100644
--- a/sm2/p256_generic.go
+++ b/sm2/p256_generic.go
@@ -1,3 +1,4 @@
+//go:build !amd64
 // +build !amd64
 
 package sm2
diff --git a/sm3/sm3block_generic.go b/sm3/sm3block_generic.go
index 2737735..722a155 100644
--- a/sm3/sm3block_generic.go
+++ b/sm3/sm3block_generic.go
@@ -1,5 +1,8 @@
+//go:build !amd64
 // +build !amd64
 
 package sm3
 
-var block = blockGeneric
+func block(dig *digest, p []byte) {
+	blockGeneric(dig, p)
+}
diff --git a/sm4/cipher_asm.go b/sm4/cipher_asm.go
index e9d4870..f95ef6c 100644
--- a/sm4/cipher_asm.go
+++ b/sm4/cipher_asm.go
@@ -1,3 +1,4 @@
+//go:build amd64
 // +build amd64
 
 package sm4
diff --git a/sm4/cipher_generic.go b/sm4/cipher_generic.go
index cdbb6d2..8e6dc39 100644
--- a/sm4/cipher_generic.go
+++ b/sm4/cipher_generic.go
@@ -1,3 +1,4 @@
+//go:build !amd64
 // +build !amd64
 
 package sm4
diff --git a/sm4/sm4_gcm.go b/sm4/sm4_gcm.go
index ed79447..4318b8d 100644
--- a/sm4/sm4_gcm.go
+++ b/sm4/sm4_gcm.go
@@ -1,3 +1,4 @@
+//go:build amd64
 // +build amd64
 package sm4