diff --git a/lib/lib.dom.d.ts b/lib/lib.dom.d.ts
index 0c3292a3bbc09..61ab7cf4e1d2e 100644
--- a/lib/lib.dom.d.ts
+++ b/lib/lib.dom.d.ts
@@ -5516,7 +5516,7 @@ interface HTMLInputElement extends HTMLElement {
      * @param start The offset into the text field for the start of the selection.
      * @param end The offset into the text field for the end of the selection.
      */
-    setSelectionRange(start?: number, end?: number, direction?: string): void;
+    setSelectionRange(start: number, end: number, direction?: "forward" | "backward" | "none"): void;
     /**
      * Decrements a range input control's value by the value given by the Step attribute. If the optional parameter is used, it will decrement the input control's step value multiplied by the parameter's value.
      * @param n Value to decrement the value by.
@@ -6979,7 +6979,7 @@ interface HTMLTextAreaElement extends HTMLElement {
      * @param start The offset into the text field for the start of the selection.
      * @param end The offset into the text field for the end of the selection.
      */
-    setSelectionRange(start: number, end: number): void;
+    setSelectionRange(start: number, end: number, direction?: "forward" | "backward" | "none"): void;
     addEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTextAreaElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | AddEventListenerOptions): void;
     addEventListener(type: string, listener: EventListenerOrEventListenerObject, options?: boolean | AddEventListenerOptions): void;
     removeEventListener<K extends keyof HTMLElementEventMap>(type: K, listener: (this: HTMLTextAreaElement, ev: HTMLElementEventMap[K]) => any, options?: boolean | EventListenerOptions): void;
@@ -15378,4 +15378,4 @@ type ServiceWorkerState = "installing" | "installed" | "activating" | "activated
 type Transport = "usb" | "nfc" | "ble";
 type VideoFacingModeEnum = "user" | "environment" | "left" | "right";
 type VisibilityState = "hidden" | "visible" | "prerender" | "unloaded";
-type XMLHttpRequestResponseType = "" | "arraybuffer" | "blob" | "document" | "json" | "text";
\ No newline at end of file
+type XMLHttpRequestResponseType = "" | "arraybuffer" | "blob" | "document" | "json" | "text";