diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 2fb892d4..54dbe23a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -37,10 +37,7 @@ jobs:
           if-no-files-found: error
 
       # Test
-      - name: Run headless test
-        uses: coactions/setup-xvfb@v1
-        with:
-          run: npm test
+      - run: npm test
 
       # Publish web npm package
       - if: startsWith(github.ref, 'refs/tags/v')
diff --git a/karma.conf.js b/karma.conf.js
index 9f95bc10..4159b912 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -8,9 +8,9 @@ module.exports = function(config) {
     'use strict';
 
     var browsersMatrix = {
-            'win': ['Firefox', 'Chrome', 'Edge'],
-            'linux': ['Firefox', 'Chrome'],
-            'mac': ['Safari', 'Firefox', 'Chrome']
+            'win': ['FirefoxHeadless', 'ChromeHeadless', 'Edge'],
+            'linux': ['FirefoxHeadless', 'ChromeHeadless'],
+            'mac': ['Safari', 'FirefoxHeadless', 'ChromeHeadless']
         },
         isWin = /^win/.test(process.platform),
         isLinux = /^linux/.test(process.platform),