diff --git a/packages/playwright-core/browsers.json b/packages/playwright-core/browsers.json
index 65a3c6baee..ff4c3411f6 100644
--- a/packages/playwright-core/browsers.json
+++ b/packages/playwright-core/browsers.json
@@ -33,7 +33,7 @@
     },
     {
       "name": "webkit",
-      "revision": "1832",
+      "revision": "1834",
       "installByDefault": true,
       "revisionOverrides": {
         "mac10.14": "1446",
diff --git a/packages/playwright-core/src/server/webkit/protocol.d.ts b/packages/playwright-core/src/server/webkit/protocol.d.ts
index a4f451e538..94efb31b6d 100644
--- a/packages/playwright-core/src/server/webkit/protocol.d.ts
+++ b/packages/playwright-core/src/server/webkit/protocol.d.ts
@@ -7819,6 +7819,10 @@ the top of the viewport and Y increases as it proceeds towards the bottom of the
        * Nested value preview.
        */
       valuePreview?: ObjectPreview;
+      /**
+       * True if this is a private field.
+       */
+      isPrivate?: boolean;
       /**
        * True if this is an internal property.
        */