diff --git a/docsfera.json b/docsfera.json
index c978f88..cc4bfd0 100644
--- a/docsfera.json
+++ b/docsfera.json
@@ -5947,6 +5947,16 @@
               }
             }
           ],
+          "requestBody": {
+            "required": true,
+            "content": {
+              "application/json": {
+                "schema": {
+                  "$ref": "#/components/schemas/UpdateColumnsMetadataRequest"
+                }
+              }
+            }
+          },
           "responses": {
             "200": {
               "description": ""
@@ -11162,6 +11172,35 @@
             "columns_metadata"
           ]
         },
+        "ColumnDescriptionDto": {
+          "type": "object",
+          "properties": {
+            "column_name": {
+              "type": "string"
+            },
+            "description": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "column_name",
+            "description"
+          ]
+        },
+        "UpdateColumnsMetadataRequest": {
+          "type": "object",
+          "properties": {
+            "columns": {
+              "type": "array",
+              "items": {
+                "$ref": "#/components/schemas/ColumnDescriptionDto"
+              }
+            }
+          },
+          "required": [
+            "columns"
+          ]
+        },
         "IData": {
           "type": "object",
           "properties": {
diff --git a/src/modules/catalog/catalog.controller.ts b/src/modules/catalog/catalog.controller.ts
index 9484f1b..1690e58 100644
--- a/src/modules/catalog/catalog.controller.ts
+++ b/src/modules/catalog/catalog.controller.ts
@@ -52,6 +52,7 @@ import {
   IUpdateDataRequest,
   TriggerCatalogReq,
   TriggerCatalogRes,
+  UpdateColumnsMetadataRequest,
 } from './dtos';
 import { GrpcToHttpExceptionFilter } from 'src/error/grpc-to-http-exception.filter';
 import { Language } from 'src/decorators/language.decorator';
@@ -441,35 +442,14 @@ export class CatalogController {
     @User() user: RequestUser,
     @Language() language: LanguageEnum,
     @Param('id') id: string,
-    @Body()
-    body: {
-      column_name?: string;
-      description?: string;
-      columns?: { column_name: string; description: string }[];
-    },
+    @Body(new ValidationPipe()) body: UpdateColumnsMetadataRequest,
   ): Promise<{ success: boolean }> {
     const { customer_name, customer_id, user_id, username } = user;
 
-    // Accept both a single { column_name, description } and a batch { columns: [...] }.
-    const columns = Array.isArray(body.columns)
-      ? body.columns
-      : [{ column_name: body.column_name, description: body.description }];
-
-    // column_name and description must be strings — the frontend renders the
-    // description as text and breaks on non-string values (e.g. numbers).
-    for (const column of columns) {
-      if (typeof column?.column_name !== 'string' || !column.column_name.trim()) {
-        throw new BadRequestException('column_name must be a non-empty string');
-      }
-      if (typeof column?.description !== 'string') {
-        throw new BadRequestException('description must be a string');
-      }
-    }
-
     this.logger.info(`/catalog - update columns metadata`, {
       user_id,
       customer_name,
-      columns_count: columns.length,
+      columns_count: body.columns.length,
     });
 
     const metadata = PackTheMetadata({
@@ -480,7 +460,11 @@ export class CatalogController {
       language,
     });
 
-    await this.catalogService.updateColumnsDescriptions(id, columns, metadata);
+    await this.catalogService.updateColumnsDescriptions(
+      id,
+      body.columns,
+      metadata,
+    );
 
     return { success: true };
   }
diff --git a/src/modules/catalog/dtos/index.ts b/src/modules/catalog/dtos/index.ts
index 770b01c..6b71473 100644
--- a/src/modules/catalog/dtos/index.ts
+++ b/src/modules/catalog/dtos/index.ts
@@ -1,5 +1,13 @@
 import { ApiProperty, ApiPropertyOptional, PickType } from '@nestjs/swagger';
-import { IsEnum } from 'class-validator';
+import {
+  ArrayNotEmpty,
+  IsArray,
+  IsEnum,
+  IsNotEmpty,
+  IsString,
+  ValidateNested,
+} from 'class-validator';
+import { Type } from 'class-transformer';
 import { CreateDataAssetRequest } from '@dadosfera/protospack-v2/dist/lib/Catalog/interfaces/messages';
 
 export enum DataAssetShareType {
@@ -219,6 +227,26 @@ export class IUpdateCertificationStatusRequest {
   certification_status: CertificationStatus;
 }
 
+export class ColumnDescriptionDto {
+  @ApiProperty()
+  @IsString()
+  @IsNotEmpty()
+  column_name: string;
+
+  @ApiProperty()
+  @IsString()
+  description: string;
+}
+
+export class UpdateColumnsMetadataRequest {
+  @ApiProperty({ type: [ColumnDescriptionDto] })
+  @IsArray()
+  @ArrayNotEmpty()
+  @ValidateNested({ each: true })
+  @Type(() => ColumnDescriptionDto)
+  columns: ColumnDescriptionDto[];
+}
+
 export class ICreateDataAsset implements CreateDataAssetRequest {
   @ApiProperty()
   display_name: string;