diff --git a/js/common/grids.d.ts b/js/common/grids.d.ts
index 512ad854c630..103dad767221 100644
--- a/js/common/grids.d.ts
+++ b/js/common/grids.d.ts
@@ -2746,7 +2746,7 @@ export type RowInsertingInfo<TRowData = any> = {
   data: TRowData;
   /**
    * @docid
-   * @type Promise<void>
+   * @type boolean|Promise<boolean>|Promise<void>
    */
   cancel: boolean | PromiseLike<boolean> | PromiseLike<void>;
 };
@@ -2793,7 +2793,7 @@ export interface RowRemovingInfo<TRowData = any, TKey = any> {
   readonly key: TKey;
   /**
    * @docid
-   * @type boolean|Promise<void>
+   * @type boolean|Promise<boolean>|Promise<void>
    */
   cancel: boolean | PromiseLike<boolean> | PromiseLike<void>;
 }
@@ -2835,7 +2835,7 @@ export interface RowUpdatingInfo<TRowData = any, TKey = any> {
   readonly key: TKey;
   /**
    * @docid
-   * @type boolean|Promise<void>
+   * @type boolean|Promise<boolean>|Promise<void>
    */
   cancel: boolean | PromiseLike<boolean> | PromiseLike<void>;
 }