diff --git a/src/controllers/product/type-controller.ts b/src/controllers/product/type-controller.ts
index 2395b96..ef859da 100644
--- a/src/controllers/product/type-controller.ts
+++ b/src/controllers/product/type-controller.ts
@@ -114,6 +114,17 @@ export class ProductType extends Controller {
     @Body() body: ProductTypeUpdate,
     @Path() typeId: string,
   ) {
+    if (
+      body.productGroupId &&
+      !(await prisma.productType.findFirst({ where: { id: body.productGroupId } }))
+    ) {
+      throw new HttpError(
+        HttpStatus.BAD_REQUEST,
+        "Product group cannot be found.",
+        "missing_or_invalid_parameter",
+      );
+    }
+
     if (!(await prisma.productType.findUnique({ where: { id: typeId } }))) {
       throw new HttpError(HttpStatus.NOT_FOUND, "Product type cannot be found.", "data_not_found");
     }