diff --git a/package.json b/package.json
index 704971cf304d3..1ee7cca3afb03 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
     "node": ">=6.4.0"
   },
   "puppeteer": {
-    "chromium_revision": "599821"
+    "chromium_revision": "604907"
   },
   "scripts": {
     "unit": "node test/test.js",
diff --git a/utils/protocol-types-generator/index.js b/utils/protocol-types-generator/index.js
index 3923cc24a85c6..33098b3793edf 100644
--- a/utils/protocol-types-generator/index.js
+++ b/utils/protocol-types-generator/index.js
@@ -13,6 +13,7 @@ module.exports = puppeteer.launch({
   const version = await browser.version();
   await browser.close();
   const output = `// This is generated from /utils/protocol-types-generator/index.js
+  type binary = string;
 declare global {
   module Protocol {${json.domains.map(domain => `${domain.description ? `
     /**
@@ -101,4 +102,4 @@ function typeOfProperty(property, domain) {
       return 'number';
   }
   return property.type;
-}
\ No newline at end of file
+}