diff --git a/.travis.yml b/.travis.yml
index f9a2de6..efa5c86 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,8 +11,12 @@ branches:
     - /.*/
 
 language: node_js
+# Should test the Node version that runs in production.
+# https://docs.travis-ci.com/user/languages/javascript-with-nodejs/#Specifying-Node.js-versions
+# https://devcenter.heroku.com/articles/nodejs-support#specifying-a-node-js-version
+# I believe RHcloud (openshift 2) was running 0.11 but it's being sunset anyway.
 node_js:
-  - "0.11"  # Latest http://docs.travis-ci.com/user/languages/javascript-with-nodejs/#Provided-Node.js-Versions
+  - "8"
 
 # http://blog.travis-ci.com/2013-12-05-speed-up-your-builds-cache-your-dependencies/
 cache:
diff --git a/package.json b/package.json
index 175f004..fa52789 100644
--- a/package.json
+++ b/package.json
@@ -14,6 +14,9 @@
     "sync-exec": "~0.6.2",
     "wd": "~1.0.0"
   },
+  "engines": {
+    "node": "8.x"
+  },
   "main": "server.coffee",
   "scripts": {
     "start": "coffee server.coffee",
diff --git a/test/browser-on-saucelabs.spec.coffee b/test/browser-on-saucelabs.spec.coffee
index caa10f3..f8f5e6b 100644
--- a/test/browser-on-saucelabs.spec.coffee
+++ b/test/browser-on-saucelabs.spec.coffee
@@ -45,17 +45,17 @@ timeouts = {
 desiredBrowsers = [
   # Generated with https://docs.saucelabs.com/reference/platforms-configurator/
   # Desktop:
-  {browserName: 'internet explorer', version: '8.0', platform: 'Windows XP'}
+  {browserName: 'internet explorer', version: '8.0', platform: 'Windows 7'}
   {browserName: 'internet explorer', version: '11.0', platform: 'Windows 10'}
   {browserName: 'MicrosoftEdge'}
   # arbitrary somewhat old - but not ancient - FF and Chrome versions.
   {browserName: 'firefox', version: '30.0', platform: 'Linux'}
-  {browserName: 'chrome', version: '30.0', platform: 'Linux'}
-  {browserName: 'safari', version: '9.0'}
-  {browserName: 'safari', version: '6.0'}
+  {browserName: 'chrome', version: '35.0', platform: 'Linux'}
+  {browserName: 'Safari', version: '10.0', platform: 'macOS 10.12'}
+  {browserName: 'Safari', version: '7.0', platform: 'OS X 10.9'}
   # Mobile (doesn't mean it's usable though):
-  {browserName: 'safari', deviceName: 'iPad Simulator', platformVersion: '8.4'}
-  {browserName: 'android', deviceName: 'Android Emulator', platformVersion: '4.0'}
+  {browserName: 'Safari', deviceName: 'iPad Simulator', platformName: 'iOS', platformVersion: '8.4'}
+#  {browserName: 'Browser', deviceName: 'Android Emulator', platformName: 'Android', platformVersion: '4.4'}
 ]
 
 getCommonDesired = ->
@@ -142,7 +142,7 @@ describeBrowserTest = (browserName, getDesired, getSite) ->
         expect(err).to.be(null)
         browser.waitFor wd.asserters.jsCondition('document.title.match(/smoke test/)'), 10*sec, (err, value) ->
           expect(err).to.be(null)
-          browser.waitForElementByCss '.MathJax_Display', 15*sec, (err, el) ->
+          browser.waitForElementByCss '.MathJax_Display', 30*sec, (err, el) ->
             expect(err).to.be(null)
             el.text (err, text) ->
               expect(err).to.be(null)