diff --git a/package.json b/package.json
index 7fd27c0f48..b606c83bf2 100644
--- a/package.json
+++ b/package.json
@@ -10,7 +10,7 @@
   "playwright": {
     "chromium_revision": "740847",
     "firefox_revision": "1028",
-    "webkit_revision": "1147"
+    "webkit_revision": "1148"
   },
   "scripts": {
     "ctest": "cross-env BROWSER=chromium node test/test.js",
diff --git a/test/emulation.spec.js b/test/emulation.spec.js
index 712f64cad0..c7d49c2ab7 100644
--- a/test/emulation.spec.js
+++ b/test/emulation.spec.js
@@ -198,31 +198,19 @@ module.exports.describe = function({testRunner, expect, playwright, headless, FF
       const func = () => new Date(1479579154987).toString();
       {
         const page = await newPage({ timezoneId: 'America/Jamaica' });
-        if (WEBKIT)
-          expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 13:12:34 GMT-0500 (America/Jamaica)');
-        else
-          expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 13:12:34 GMT-0500 (Eastern Standard Time)');
+        expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 13:12:34 GMT-0500 (Eastern Standard Time)');
       }
       {
         const page = await newPage({ timezoneId: 'Pacific/Honolulu' });
-        if (WEBKIT)
-          expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 08:12:34 GMT-1000 (Pacific/Honolulu)');
-        else
-          expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 08:12:34 GMT-1000 (Hawaii-Aleutian Standard Time)');
+        expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 08:12:34 GMT-1000 (Hawaii-Aleutian Standard Time)');
       }
       {
         const page = await newPage({ timezoneId: 'America/Buenos_Aires' });
-        if (WEBKIT)
-          expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 15:12:34 GMT-0300 (America/Buenos_Aires)');
-        else
-          expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 15:12:34 GMT-0300 (Argentina Standard Time)');
+        expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 15:12:34 GMT-0300 (Argentina Standard Time)');
       }
       {
         const page = await newPage({ timezoneId: 'Europe/Berlin' });
-        if (WEBKIT)
-          expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 19:12:34 GMT+0100 (Europe/Berlin)');
-        else
-          expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 19:12:34 GMT+0100 (Central European Standard Time)');
+        expect(await page.evaluate(func)).toBe('Sat Nov 19 2016 19:12:34 GMT+0100 (Central European Standard Time)');
       }
     });