diff --git a/src/corestack/user/v1/bind.proto b/src/corestack/user/v1/bind.proto
new file mode 100644
index 0000000..c36e917
--- /dev/null
+++ b/src/corestack/user/v1/bind.proto
@@ -0,0 +1,6 @@
+syntax = "proto3";
+package corestack.user.v1;
+option go_package = "git.shenxianhe.cn/shenxianhe/sdk/corestack/user/v1;userv1";
+
+message BindWxOpenIDRequest { string code = 1; }
+message BindWxOpenIDResponse { string wx_open_id = 1; }
diff --git a/src/corestack/user/v1/service.proto b/src/corestack/user/v1/service.proto
index cf5afb6..1993421 100644
--- a/src/corestack/user/v1/service.proto
+++ b/src/corestack/user/v1/service.proto
@@ -3,6 +3,7 @@ package corestack.user.v1;
 option go_package = "git.shenxianhe.cn/shenxianhe/sdk/corestack/user/v1;userv1";
 
 import "corestack/user/v1/user.proto";
+import "corestack/user/v1/bind.proto";
 
 service UserService {
   rpc SetPassword(SetPasswordRequest) returns (SetPasswordResponse);
@@ -12,4 +13,5 @@ service UserService {
   rpc SetAvatar(SetAvatarRequest) returns (SetAvatarResponse);
   rpc SetDescription(SetDescriptionRequest) returns (SetDescriptionResponse);
   rpc GetUserInfo(GetUserInfoRequest) returns (GetUserInfoResponse);
+  rpc BindWxOpenID(BindWxOpenIDRequest) returns (BindWxOpenIDResponse);
 }
diff --git a/version.txt b/version.txt
index 1cac385..0eed1a2 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-1.11.0
+1.12.0