diff --git a/docs/site/Controller-generator.md b/docs/site/Controller-generator.md
index 7ab29ddf96cc..5d97d783f189 100644
--- a/docs/site/Controller-generator.md
+++ b/docs/site/Controller-generator.md
@@ -169,10 +169,17 @@ export class TodoController {
     },
   })
   async updateAll(
-    @requestBody() data: Todo,
+    @requestBody({
+      content: {
+        'application/json': {
+          schema: getModelSchemaRef(Todo, {partial: true}),
+        },
+      },
+    })
+    todo: Partial<Todo>
     @param.query.object('where', getWhereSchemaFor(Todo)) where?: Where<Todo>,
   ): Promise<number> {
-    return await this.todoRepository.updateAll(data, where);
+    return await this.todoRepository.updateAll(todo, where);
   }
 
   @get('/todos/{id}', {
@@ -196,9 +203,16 @@ export class TodoController {
   })
   async updateById(
     @param.path.number('id') id: number,
-    @requestBody() data: Todo,
+    @requestBody({
+      content: {
+        'application/json': {
+          schema: getModelSchemaRef(Todo, {partial: true}),
+        },
+      },
+    })
+    todo: Partial<Todo>,
   ): Promise<void> {
-    await this.todoRepository.updateById(id, data);
+    await this.todoRepository.updateById(id, todo);
   }
 
   @del('/todos/{id}', {
diff --git a/docs/site/tutorials/todo-list/todo-list-tutorial-controller.md b/docs/site/tutorials/todo-list/todo-list-tutorial-controller.md
index f197b0381448..f7309418be1f 100644
--- a/docs/site/tutorials/todo-list/todo-list-tutorial-controller.md
+++ b/docs/site/tutorials/todo-list/todo-list-tutorial-controller.md
@@ -173,7 +173,14 @@ export class TodoListTodoController {
   })
   async patch(
     @param.path.number('id') id: number,
-    @requestBody() todo: Partial<Todo>,
+    @requestBody({
+      content: {
+        'application/json': {
+          schema: getModelSchemaRef(Todo, {partial: true}),
+        },
+      },
+    })
+    todo: Partial<Todo>
     @param.query.object('where', getWhereSchemaFor(Todo)) where?: Where<Todo>,
   ): Promise<Count> {
     return await this.todoListRepo.todos(id).patch(todo, where);
diff --git a/packages/cli/generators/controller/templates/src/controllers/controller-rest-template.ts.ejs b/packages/cli/generators/controller/templates/src/controllers/controller-rest-template.ts.ejs
index cf49640903bd..686dd4082ac8 100644
--- a/packages/cli/generators/controller/templates/src/controllers/controller-rest-template.ts.ejs
+++ b/packages/cli/generators/controller/templates/src/controllers/controller-rest-template.ts.ejs
@@ -10,6 +10,7 @@ import {
   param,
   get,
   getFilterSchemaFor,
+  getModelSchemaRef,
   getWhereSchemaFor,
   patch,
   put,
@@ -78,7 +79,14 @@ export class <%= className %>Controller {
     },
   })
   async updateAll(
-    @requestBody() <%= modelVariableName %>: <%= modelName %>,
+    @requestBody({
+      content: {
+        'application/json': {
+          schema: getModelSchemaRef(<%= modelName %>, {partial: true}),
+        },
+      },
+    })
+    <%= modelVariableName %>: <%= modelName %>,
     @param.query.object('where', getWhereSchemaFor(<%= modelName %>)) where?: Where<<%= modelName %>>,
   ): Promise<Count> {
     return await this.<%= repositoryNameCamel %>.updateAll(<%= modelVariableName %>, where);
@@ -105,7 +113,14 @@ export class <%= className %>Controller {
   })
   async updateById(
     @param.path.<%= idType %>('id') id: <%= idType %>,
-    @requestBody() <%= modelVariableName %>: <%= modelName %>,
+    @requestBody({
+      content: {
+        'application/json': {
+          schema: getModelSchemaRef(<%= modelName %>, {partial: true}),
+        },
+      },
+    })
+    <%= modelVariableName %>: <%= modelName %>,
   ): Promise<void> {
     await this.<%= repositoryNameCamel %>.updateById(id, <%= modelVariableName %>);
   }
diff --git a/packages/cli/generators/relation/templates/controller-relation-template-has-many.ts.ejs b/packages/cli/generators/relation/templates/controller-relation-template-has-many.ts.ejs
index 8aaf5f732b3f..0270d7e8584b 100644
--- a/packages/cli/generators/relation/templates/controller-relation-template-has-many.ts.ejs
+++ b/packages/cli/generators/relation/templates/controller-relation-template-has-many.ts.ejs
@@ -8,6 +8,7 @@ import {
 import {
   del,
   get,
+  getModelSchemaRef,
   getWhereSchemaFor,
   param,
   patch,
@@ -69,7 +70,14 @@ export class <%= controllerClassName %> {
   })
   async patch(
     @param.path.<%= sourceModelPrimaryKeyType %>('id') id: <%= sourceModelPrimaryKeyType %>,
-    @requestBody() <%= targetModelRequestBody %>: Partial<<%= targetModelClassName %>>,
+    @requestBody({
+      content: {
+        'application/json': {
+          schema: getModelSchemaRef(<%= targetModelClassName %>, {partial: true}),
+        },
+      },
+    })
+    <%= targetModelRequestBody %>: Partial<<%= targetModelClassName %>>,
     @param.query.object('where', getWhereSchemaFor(<%= targetModelClassName %>)) where?: Where<<%= targetModelClassName %>>,
   ): Promise<Count> {
     return await this.<%= paramSourceRepository %>.<%= relationPropertyName %>(id).patch(<%= targetModelRequestBody %>, where);
diff --git a/packages/cli/test/integration/generators/controller.integration.js b/packages/cli/test/integration/generators/controller.integration.js
index 0803c67d009b..f3160979a182 100644
--- a/packages/cli/test/integration/generators/controller.integration.js
+++ b/packages/cli/test/integration/generators/controller.integration.js
@@ -287,7 +287,7 @@ function checkRestCrudContents() {
     /'200': {/,
     /description: 'ProductReview PATCH success count'/,
     /content: {'application\/json': {schema: CountSchema}},\s{1,}},\s{1,}},\s{1,}}\)/,
-    /async updateAll\(\s{1,}\@requestBody\(\) productReview: ProductReview,\s{1,} @param\.query\.object\('where', getWhereSchemaFor\(ProductReview\)\) where\?: Where<ProductReview>(|,\s+)\)/,
+    /async updateAll\(\s+\@requestBody\({\s+content: {\s+'application\/json': {\s+schema: getModelSchemaRef\(ProductReview, {partial: true}\),\s+},\s+},\s+}\)\s+productReview: ProductReview,\s{1,} @param\.query\.object\('where', getWhereSchemaFor\(ProductReview\)\) where\?: Where<ProductReview>(|,\s+)\)/,
   ];
   patchUpdateAllRegEx.forEach(regex => {
     assert.fileContent(expectedFile, regex);
@@ -312,7 +312,7 @@ function checkRestCrudContents() {
     /responses: {/,
     /'204': {/,
     /description: 'ProductReview PATCH success'/,
-    /async updateById\(\s{1,}\@param.path.number\('id'\) id: number,\s{1,}\@requestBody\(\) productReview: ProductReview,\s+\)/,
+    /async updateById\(\s+\@param.path.number\('id'\) id: number,\s+\@requestBody\({\s+content: {\s+'application\/json': {\s+schema: getModelSchemaRef\(ProductReview, {partial: true}\),\s+},\s+},\s+}\)\s+productReview: ProductReview,\s+\)/,
   ];
   patchUpdateByIdRegEx.forEach(regex => {
     assert.fileContent(expectedFile, regex);
diff --git a/packages/cli/test/integration/generators/hasmany.relation.integration.js b/packages/cli/test/integration/generators/hasmany.relation.integration.js
index 2c6e596c9896..59468136845c 100644
--- a/packages/cli/test/integration/generators/hasmany.relation.integration.js
+++ b/packages/cli/test/integration/generators/hasmany.relation.integration.js
@@ -494,7 +494,8 @@ context('check if the controller file created ', () => {
           /description: 'Customer.Order PATCH success count',\n/,
           /content: { 'application\/json': { schema: CountSchema } },\n/,
           /},\n {4}},\n {2}}\)\n {2}async patch\(\n/,
-          /\@param\.path\.number\('id'\) id: number,\n {4}\@requestBody\(\) order: Partial<Order>,\n/,
+          /\@param\.path\.number\('id'\) id: number,\n {4}/,
+          /\@requestBody\({\s+content: {\s+'application\/json': {\s+schema: getModelSchemaRef\(Order, {partial: true}\),\s+},\s+},\s+}\)\s+order: Partial<Order>,\n/,
           /\@param\.query\.object\('where', getWhereSchemaFor\(Order\)\) where\?: Where<Order>,\n/,
           /\): Promise<Count> {\n/,
           /return await this\.customerRepository\.orders\(id\).patch\(order, where\);\n {2}}\n/,
@@ -505,7 +506,8 @@ context('check if the controller file created ', () => {
           /description: 'CustomerClass.OrderClass PATCH success count',\n/,
           /content: { 'application\/json': { schema: CountSchema } },\n/,
           /},\n {4}},\n {2}}\)\n {2}async patch\(\n/,
-          /\@param\.path\.number\('id'\) id: number,\n {4}\@requestBody\(\) orderClass: Partial<OrderClass>,\n/,
+          /\@param\.path\.number\('id'\) id: number,\n {4}/,
+          /\@requestBody\({\s+content: {\s+'application\/json': {\s+schema: getModelSchemaRef\(OrderClass, {partial: true}\),\s+},\s+},\s+}\)\s+orderClass: Partial<OrderClass>,\n/,
           /\@param\.query\.object\('where', getWhereSchemaFor\(OrderClass\)\) where\?: Where<OrderClass>,\n/,
           /\): Promise<Count> {\n/,
           /return await this\.customerClassRepository\.orderClasses\(id\)\.patch\(orderClass, where\);\n {2}}\n/,
@@ -516,7 +518,8 @@ context('check if the controller file created ', () => {
           /description: 'CustomerClassType.OrderClassType PATCH success count',\n/,
           /content: { 'application\/json': { schema: CountSchema } },\n/,
           /},\n {4}},\n {2}}\)\n {2}async patch\(\n/,
-          /\@param\.path\.number\('id'\) id: number,\n {4}\@requestBody\(\) orderClassType: Partial<OrderClassType>,\n/,
+          /\@param\.path\.number\('id'\) id: number,\n {4}/,
+          /\@requestBody\({\s+content: {\s+'application\/json': {\s+schema: getModelSchemaRef\(OrderClassType, {partial: true}\),\s+},\s+},\s+}\)\s+orderClassType: Partial<OrderClassType>,\n/,
           /\@param\.query\.object\('where', getWhereSchemaFor\(OrderClassType\)\) where\?: Where<OrderClassType>,\n/,
           /\): Promise<Count> {\n/,
           /return await this\.customerClassTypeRepository\.orderClassTypes\(id\).patch\(orderClassType, where\);\n {2}}\n/,