diff --git a/config/targets.js b/config/targets.js
index ccd0179028c..2fbfeb8fc24 100644
--- a/config/targets.js
+++ b/config/targets.js
@@ -1,12 +1,12 @@
 const browsers = [
-  'Firefox >= 20', 'Chrome >=20', 'Android >= 4.0', 'Safari >= 7', 'iOS >= 5'
+  'Firefox >= 55', 'Chrome >=55', 'Android >= 4.4', 'Safari >= 10', 'iOS >= 10',
 ];
 
 const isCI = !!process.env.CI;
 const isProduction = process.env.EMBER_ENV === 'production';
 
 if (isCI || isProduction) {
-  browsers.push('ie 11');
+  browsers.push('defaults');
 }
 
 module.exports = {