diff --git a/test/saucelabs.js b/test/saucelabs.js
index 615c0252a..ee2a5f5a5 100644
--- a/test/saucelabs.js
+++ b/test/saucelabs.js
@@ -105,8 +105,8 @@ var platforms = [
   ['Linux', 'android', '5.1'],
   ['Windows 10', 'chrome', '46'],
   ['Windows 10', 'chrome', '45'],
+  ['Windows 10', 'firefox', '42'],
   ['Windows 10', 'firefox', '41'],
-  ['Windows 10', 'firefox', '40'],
   ['Windows 10', 'microsoftedge', '20.10240'],
   ['Windows 10', 'internet explorer', '11'],
   ['Windows 8', 'internet explorer', '10'],