diff --git a/packages/splitjs/karma.conf.js b/packages/splitjs/karma.conf.js
index 26dd98dc9..43f22f36a 100644
--- a/packages/splitjs/karma.conf.js
+++ b/packages/splitjs/karma.conf.js
@@ -17,7 +17,7 @@ module.exports = config => {
                 base: 'SauceLabs',
                 browserName: 'safari',
                 platform: 'macOS 10.13',
-                version: '12.0',
+                version: '12.1',
             },
 
             sl_firefox: {