diff --git a/gulpfile.js b/gulpfile.js
index ac7c86e..441bda3 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -1,18 +1,15 @@
 var gulp = require('gulp');
 
 gulp.task('css', function() {
-    var sass = require('gulp-sass');
+    var sass = require('gulp-sass')(require('sass'));
     var postcss = require('gulp-postcss');
     var autoprefixer = require('autoprefixer');
 
     return gulp.src('./css/sass/*.scss')
         .pipe(sass({
-            outputStyle: 'nested',
             includePaths: ['../../node_modules/susy/sass']
         }).on('error', sass.logError))
-        .pipe(postcss([
-            autoprefixer({browsers: ['> 5%', '> 5% in US', 'last 2 versions']})
-        ]))
+        .pipe(postcss([autoprefixer]))
         .pipe(gulp.dest('./css'));
 });
 
diff --git a/package-lock.json b/package-lock.json
index 6998a3f..2954cab 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "emiglio",
-  "version": "2.4.1",
+  "version": "2.4.2",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
diff --git a/package.json b/package.json
index c78faf7..3672a5e 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "emiglio",
-  "version": "2.4.1",
+  "version": "2.4.2",
   "description": "\"Named after our favorite robot. A simple, minimal theme with reds and greens.\"",
   "main": "gulpfile.js",
   "devDependencies": {
@@ -33,5 +33,9 @@
   "bugs": {
     "url": "https://github.com/omeka/theme-emiglio/issues"
   },
-  "homepage": "https://github.com/omeka/theme-emiglio#readme"
+  "homepage": "https://github.com/omeka/theme-emiglio#readme",
+  "browserslist": [
+    "> 5%",
+    "> 1% in US"
+  ]
 }
diff --git a/theme.ini b/theme.ini
index 10ffa3e..86ec038 100644
--- a/theme.ini
+++ b/theme.ini
@@ -5,6 +5,6 @@ description = "Named after our favorite robot. A simple, minimal theme with reds
 license = "GPLv3"
 website = "https://omeka.org"
 support_link = "https://omeka.org/forums/forum/themes-and-public-display"
-omeka_minimum_version="2.8"
-omeka_tested_up_to="2.8"
-version="2.4.1"
+omeka_minimum_version="3.0"
+omeka_tested_up_to="3.0"
+version="2.4.2"