diff --git a/.babelrc b/.babelrc
index 3901f7fb1..526ddfd8d 100644
--- a/.babelrc
+++ b/.babelrc
@@ -1,21 +1,3 @@
 {
-	"presets": [
-		[
-			"@babel/preset-env",
-			{
-				// See modern tier: https://www.mediawiki.org/wiki/Compatibility#Browser_support_matrix
-				"targets": {
-					// https://en.wikipedia.org/wiki/Google_Chrome_version_history
-					"chrome": "64",
-					"ie": "11",
-					// https://en.wikipedia.org/wiki/Firefox_version_history
-					"firefox": "58",
-					"safari": "5.1",
-					"opera": "15",
-					"ios": "6.1",
-					"android": "4.1"
-				}
-			}
-		]
-	]
+	"presets": ["@babel/preset-env"]
 }
diff --git a/.browserslistrc b/.browserslistrc
new file mode 100644
index 000000000..49b7e303a
--- /dev/null
+++ b/.browserslistrc
@@ -0,0 +1,17 @@
+# See Grade A in resource loader startup module mediawikicore resources/src/startup/startup.js
+
+# https//en.wikipedia.org/wiki/Google_Chrome_version_history
+chrome 13
+
+ie 11
+
+# https//en.wikipedia.org/wiki/Firefox_version_history
+firefox 4.0
+
+safari 5.0
+
+opera 15
+
+ios 6.0
+
+android 4.1