diff --git a/.travis.yml b/.travis.yml
index 5202cd9..c9643c3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,6 +4,8 @@ go:
 - '1.8'
 - '1.9'
 - 1.10.x
+- 1.11.x
+- 1.12.x
 - master
 sudo: false
 before_install:
@@ -15,8 +17,8 @@ install:
 - go build github.com/mattn/goveralls
 script:
 - make test
-- make ci-test
-- go test -coverprofile=cover.out github.com/toranger/cos-go-sdk-v5
+# - make ci-test
+# - go test -coverprofile=cover.out github.com/toranger/cos-go-sdk-v5
 - "${TRAVIS_HOME}/gopath/bin/goveralls -service=travis-ci -coverprofile=cover.out"
 matrix:
   allow_failures:
diff --git a/auth_test.go b/auth_test.go
index bf1b6c5..e735e5b 100644
--- a/auth_test.go
+++ b/auth_test.go
@@ -45,7 +45,10 @@ func TestAuthorizationTransport(t *testing.T) {
 		}
 	})
 
-	client.client.Transport = &AuthorizationTransport{}
+	client.client.Transport = &AuthorizationTransport{
+		SecretID:  "test",
+		SecretKey: "test",
+	}
 	req, _ := http.NewRequest("GET", client.BaseURL.BucketURL.String(), nil)
 	client.doAPI(context.Background(), req, nil, true)
 }
diff --git a/costesting/ci_test.go b/costesting/ci_test.go
index 90a7e67..8532117 100644
--- a/costesting/ci_test.go
+++ b/costesting/ci_test.go
@@ -6,7 +6,7 @@ import (
 	"fmt"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/suite"
-	"github.com/toranger/cos-go-sdk-v5"
+	"github.com/tencentyun/cos-go-sdk-v5"
 	"io/ioutil"
 	"math/rand"
 	"net/http"
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..35afc5c
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,10 @@
+module github.com/tencentyun/cos-go-sdk-v5
+
+go 1.12
+
+require (
+	github.com/QcloudApi/qcloud_sign_golang v0.0.0-20141224014652-e4130a326409
+	github.com/google/go-querystring v1.0.0
+	github.com/mozillazg/go-httpheader v0.2.1
+	github.com/stretchr/testify v1.3.0
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..5ee5a1d
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,13 @@
+github.com/QcloudApi/qcloud_sign_golang v0.0.0-20141224014652-e4130a326409 h1:DTQ/38ao/CfXsrK0cSAL+h4R/u0VVvfWLZEOlLwEROI=
+github.com/QcloudApi/qcloud_sign_golang v0.0.0-20141224014652-e4130a326409/go.mod h1:1pk82RBxDY/JZnPQrtqHlUFfCctgdorsd9M06fMynOM=
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/google/go-querystring v1.0.0 h1:Xkwi/a1rcvNg1PPYe5vI8GbeBY/jrVuDX5ASuANWTrk=
+github.com/google/go-querystring v1.0.0/go.mod h1:odCYkC5MyYFN7vkCjXpyrEuKhc/BUO6wN/zVPAxq5ck=
+github.com/mozillazg/go-httpheader v0.2.1 h1:geV7TrjbL8KXSyvghnFm+NyTux/hxwueTSrwhe88TQQ=
+github.com/mozillazg/go-httpheader v0.2.1/go.mod h1:jJ8xECTlalr6ValeXYdOF8fFUISeBAdw6E61aqQma60=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
diff --git a/object.go b/object.go
index 6932a93..8e6c4af 100644
--- a/object.go
+++ b/object.go
@@ -133,6 +133,8 @@ type ObjectPutHeaderOptions struct {
 	XCosStorageClass string       `header:"x-cos-storage-class,omitempty" url:"-"`
 	// 可选值: Normal, Appendable
 	//XCosObjectType string `header:"x-cos-object-type,omitempty" url:"-"`
+        // Enable Server Side Encryption, Only supported: AES256
+	XCosServerSideEncryption string       `header:"x-cos-server-side-encryption,omitempty" url:"-" xml:"-"`
 }
 
 // ObjectPutOptions the options of put object
diff --git a/object_part_test.go b/object_part_test.go
index 662d4ed..16b7ed2 100644
--- a/object_part_test.go
+++ b/object_part_test.go
@@ -168,7 +168,7 @@ func TestObjectService_ListParts(t *testing.T) {
 	})
 
 	ref, _, err := client.Object.ListParts(context.Background(),
-		name, uploadID)
+		name, uploadID, nil)
 	if err != nil {
 		t.Fatalf("Object.ListParts returned error: %v", err)
 	}
@@ -182,7 +182,7 @@ func TestObjectService_ListParts(t *testing.T) {
 			ID:          "1253846586",
 			DisplayName: "1253846586",
 		},
-		PartNumberMarker: 0,
+		PartNumberMarker: "0",
 		Initiator: &Initiator{
 			ID:          "qcs::cam::uin/100000760461:uin/100000760461",
 			DisplayName: "100000760461",
@@ -202,7 +202,7 @@ func TestObjectService_ListParts(t *testing.T) {
 			},
 		},
 		StorageClass: "Standard",
-		MaxParts:     1000,
+		MaxParts:     "1000",
 		IsTruncated:  false,
 	}