diff --git a/package.json b/package.json
index dba1b1e..5228a1e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,9 @@
 {
 	"browserslist": [
-		"defaults"
+		"> 0.5%",
+		"last 4 versions",
+		"Firefox ESR",
+		"not dead"
 	],
 	"devDependencies": {
 		"@symfony/webpack-encore": "^3.0.0",
diff --git a/postcss.config.js b/postcss.config.js
index 42b36e4..f194381 100644
--- a/postcss.config.js
+++ b/postcss.config.js
@@ -1,5 +1,5 @@
 module.exports = {
 	plugins: {
-		autoprefixer: {} // Check browserlist configuration in package.json
+		autoprefixer: {} // Browserlist configuration is defined in package.json
 	}
 }