diff --git a/browser_patches/webkit/BUILD_NUMBER b/browser_patches/webkit/BUILD_NUMBER
index f2b11f7aae3ad..dd840ebd7c161 100644
--- a/browser_patches/webkit/BUILD_NUMBER
+++ b/browser_patches/webkit/BUILD_NUMBER
@@ -1,2 +1,2 @@
-1494
-Changed: yurys@chromium.org Thu 03 Jun 2021 05:16:27 PM PDT
+1495
+Changed: yurys@chromium.org Thu 03 Jun 2021 05:34:19 PM PDT
diff --git a/browser_patches/webkit/embedder/Playwright/win/Common.h b/browser_patches/webkit/embedder/Playwright/win/Common.h
index 32d221b0f3ec9..2bc1b8fb19e99 100644
--- a/browser_patches/webkit/embedder/Playwright/win/Common.h
+++ b/browser_patches/webkit/embedder/Playwright/win/Common.h
@@ -26,6 +26,7 @@
 #pragma once
 
 #include "stdafx.h"
+#include <optional>
 #include <WebKit/WKRetainPtr.h>
 #include <WebKit/WKString.h>
 #include <WebKit/WKURL.h>