diff --git a/package.json b/package.json
index d39eb86d8c..9991259af4 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
   "playwright": {
     "chromium_revision": "724623",
     "firefox_revision": "1009",
-    "webkit_revision": "1061"
+    "webkit_revision": "1063"
   },
   "scripts": {
     "unit": "node test/test.js",
diff --git a/src/webkit/wkNetworkManager.ts b/src/webkit/wkNetworkManager.ts
index 707904125c..853a87c800 100644
--- a/src/webkit/wkNetworkManager.ts
+++ b/src/webkit/wkNetworkManager.ts
@@ -55,6 +55,8 @@ export class WKNetworkManager {
       promises.push(session.send('Network.setEmulateOfflineState', { offline: true }));
     if (credentials)
       promises.push(session.send('Emulation.setAuthCredentials', { ...credentials }));
+    else
+      promises.push(session.send('Emulation.setAuthCredentials', { username: '', password: '' }));
     await Promise.all(promises);
   }
 
diff --git a/test/interception.spec.js b/test/interception.spec.js
index 161c78fe36..3c9d465663 100644
--- a/test/interception.spec.js
+++ b/test/interception.spec.js
@@ -476,7 +476,7 @@ module.exports.describe = function({testRunner, expect, defaultBrowserOptions, p
     });
   });
 
-  describe.skip(FFOX || (WEBKIT && process.platform === 'linux'))('Interception.authenticate', function() {
+  describe.skip(FFOX)('Interception.authenticate', function() {
     it('should work', async({page, server}) => {
       server.setAuth('/empty.html', 'user', 'pass');
       let response = await page.goto(server.EMPTY_PAGE);