diff --git a/doric-js/index.d.ts b/doric-js/index.d.ts
index fde1f399..21c5a696 100644
--- a/doric-js/index.d.ts
+++ b/doric-js/index.d.ts
@@ -1274,10 +1274,10 @@ declare module "doric" {
 		 * @returns: true means the replacement will take effect, otherwise does not
 		 */
 		beforeTextChange?: (change: {
-			editing: string;
+			editing?: string;
 			start: number;
 			length: number;
-			replacement: string;
+			replacement?: string;
 		}) => boolean;
 		padding?: {
 			left?: number;
diff --git a/doric-js/lib/src/widget/input.d.ts b/doric-js/lib/src/widget/input.d.ts
index 181e1150..20aa2cb1 100644
--- a/doric-js/lib/src/widget/input.d.ts
+++ b/doric-js/lib/src/widget/input.d.ts
@@ -40,10 +40,10 @@ export declare class Input extends View {
      * @returns: true means the replacement will take effect, otherwise does not
      */
     beforeTextChange?: (change: {
-        editing: string;
+        editing?: string;
         start: number;
         length: number;
-        replacement: string;
+        replacement?: string;
     }) => boolean;
     padding?: {
         left?: number;
diff --git a/doric-js/src/widget/input.ts b/doric-js/src/widget/input.ts
index 8aa36c69..7c6c90ce 100644
--- a/doric-js/src/widget/input.ts
+++ b/doric-js/src/widget/input.ts
@@ -98,10 +98,10 @@ export class Input extends View {
      */
     @Property
     beforeTextChange?: (change: {
-        editing: string,
+        editing?: string,
         start: number,
         length: number,
-        replacement: string,
+        replacement?: string,
     }) => boolean
 
     @Property