diff --git a/browsers.json b/browsers.json
index 03ad4bd57e..331b6b2232 100644
--- a/browsers.json
+++ b/browsers.json
@@ -23,7 +23,7 @@
     },
     {
       "name": "webkit",
-      "revision": "1534",
+      "revision": "1535",
       "installByDefault": true,
       "revisionOverrides": {
         "mac10.14": "1446"
diff --git a/src/server/webkit/protocol.d.ts b/src/server/webkit/protocol.d.ts
index 903444d66a..53e244de92 100644
--- a/src/server/webkit/protocol.d.ts
+++ b/src/server/webkit/protocol.d.ts
@@ -4681,6 +4681,35 @@ Left=1, Right=2, Middle=4, Back=8, Forward=16, None=0.
     }
     export type dispatchMouseEventReturnValue = {
     }
+    /**
+     * Dispatches a wheel event to the page.
+     */
+    export type dispatchWheelEventParameters = {
+      /**
+       * X coordinate of the event relative to the main frame's viewport in CSS pixels.
+       */
+      x: number;
+      /**
+       * Y coordinate of the event relative to the main frame's viewport in CSS pixels. 0 refers to
+the top of the viewport and Y increases as it proceeds towards the bottom of the viewport.
+       */
+      y: number;
+      /**
+       * Bit field representing pressed modifier keys. Alt=1, Ctrl=2, Meta/Command=4, Shift=8
+(default: 0).
+       */
+      modifiers?: number;
+      /**
+       * X delta in CSS pixels for mouse wheel event (default: 0).
+       */
+      deltaX?: number;
+      /**
+       * Y delta in CSS pixels for mouse wheel event (default: 0).
+       */
+      deltaY?: number;
+    }
+    export type dispatchWheelEventReturnValue = {
+    }
     /**
      * Dispatches a tap event to the page.
      */
@@ -8951,6 +8980,7 @@ the top of the viewport and Y increases as it proceeds towards the bottom of the
     "IndexedDB.clearObjectStore": IndexedDB.clearObjectStoreParameters;
     "Input.dispatchKeyEvent": Input.dispatchKeyEventParameters;
     "Input.dispatchMouseEvent": Input.dispatchMouseEventParameters;
+    "Input.dispatchWheelEvent": Input.dispatchWheelEventParameters;
     "Input.dispatchTapEvent": Input.dispatchTapEventParameters;
     "Inspector.enable": Inspector.enableParameters;
     "Inspector.disable": Inspector.disableParameters;
@@ -9249,6 +9279,7 @@ the top of the viewport and Y increases as it proceeds towards the bottom of the
     "IndexedDB.clearObjectStore": IndexedDB.clearObjectStoreReturnValue;
     "Input.dispatchKeyEvent": Input.dispatchKeyEventReturnValue;
     "Input.dispatchMouseEvent": Input.dispatchMouseEventReturnValue;
+    "Input.dispatchWheelEvent": Input.dispatchWheelEventReturnValue;
     "Input.dispatchTapEvent": Input.dispatchTapEventReturnValue;
     "Inspector.enable": Inspector.enableReturnValue;
     "Inspector.disable": Inspector.disableReturnValue;