diff --git a/api/openapispec/docs.go b/api/openapispec/docs.go
index 6bfa927..57161ff 100644
--- a/api/openapispec/docs.go
+++ b/api/openapispec/docs.go
@@ -5430,15 +5430,9 @@ const docTemplate = `{
         "request.UpdateWorkspaceRequest": {
             "type": "object",
             "required": [
-                "backendID",
-                "id",
-                "owners"
+                "id"
             ],
             "properties": {
-                "backendID": {
-                    "description": "BackendID is the configuration backend id associated with the workspace.",
-                    "type": "integer"
-                },
                 "description": {
                     "description": "Description is a human-readable description of the workspace.",
                     "type": "string"
diff --git a/api/openapispec/swagger.json b/api/openapispec/swagger.json
index 72b6e73..0fa614c 100644
--- a/api/openapispec/swagger.json
+++ b/api/openapispec/swagger.json
@@ -5419,15 +5419,9 @@
         "request.UpdateWorkspaceRequest": {
             "type": "object",
             "required": [
-                "backendID",
-                "id",
-                "owners"
+                "id"
             ],
             "properties": {
-                "backendID": {
-                    "description": "BackendID is the configuration backend id associated with the workspace.",
-                    "type": "integer"
-                },
                 "description": {
                     "description": "Description is a human-readable description of the workspace.",
                     "type": "string"
diff --git a/api/openapispec/swagger.yaml b/api/openapispec/swagger.yaml
index ad73e28..a7ed6e1 100644
--- a/api/openapispec/swagger.yaml
+++ b/api/openapispec/swagger.yaml
@@ -1218,10 +1218,6 @@ definitions:
     type: object
   request.UpdateWorkspaceRequest:
     properties:
-      backendID:
-        description: BackendID is the configuration backend id associated with the
-          workspace.
-        type: integer
       description:
         description: Description is a human-readable description of the workspace.
         type: string
@@ -1242,9 +1238,7 @@ definitions:
           type: string
         type: array
     required:
-    - backendID
     - id
-    - owners
     type: object
   request.WorkspaceConfigs:
     properties:
diff --git a/package.json b/package.json
index 62c81e6..9ec18d2 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@kusionstack/kusion-api-client-sdk",
-  "version": "1.1.1",
+  "version": "1.1.2",
   "description": "Kusion API Client SDK",
   "main": "dist/src/client/index.js",
   "types": "dist/src/client/index.d.ts",
diff --git a/src/client/schemas.gen.ts b/src/client/schemas.gen.ts
index dfa46de..6cad4ce 100644
--- a/src/client/schemas.gen.ts
+++ b/src/client/schemas.gen.ts
@@ -1626,10 +1626,6 @@ export const request_UpdateStackRequestSchema = {
 
 export const request_UpdateWorkspaceRequestSchema = {
     properties: {
-        backendID: {
-            description: 'BackendID is the configuration backend id associated with the workspace.',
-            type: 'integer'
-        },
         description: {
             description: 'Description is a human-readable description of the workspace.',
             type: 'string'
@@ -1657,7 +1653,7 @@ export const request_UpdateWorkspaceRequestSchema = {
             type: 'array'
         }
     },
-    required: ['backendID', 'id', 'owners'],
+    required: ['id'],
     type: 'object'
 } as const;
 
diff --git a/src/client/types.gen.ts b/src/client/types.gen.ts
index 1697e0f..0c66980 100644
--- a/src/client/types.gen.ts
+++ b/src/client/types.gen.ts
@@ -1195,10 +1195,6 @@ export type request_UpdateStackRequest = {
 };
 
 export type request_UpdateWorkspaceRequest = {
-    /**
-     * BackendID is the configuration backend id associated with the workspace.
-     */
-    backendID: number;
     /**
      * Description is a human-readable description of the workspace.
      */
@@ -1220,7 +1216,7 @@ export type request_UpdateWorkspaceRequest = {
     /**
      * Owners is a list of owners for the workspace.
      */
-    owners: Array<(string)>;
+    owners?: Array<(string)>;
 };
 
 export type request_WorkspaceConfigs = {