diff --git a/.travis.yml b/.travis.yml
index 243df3f2..a7fe4233 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,12 +8,10 @@ node_js:
 env:
   matrix:
   - TEST_BROWSER_NAME=PhantomJS
-  - TEST_BROWSER_NAME=chrome TEST_BROWSER_OS='Windows 7,Linux'
-  - TEST_BROWSER_NAME=firefox TEST_BROWSER_OS='Windows 7,Linux' TEST_BROWSER_VERSION='30,26'
-  - TEST_BROWSER_NAME='internet explorer' TEST_BROWSER_OS='Windows 7' TEST_BROWSER_VERSION=10
-  - TEST_BROWSER_NAME='internet explorer' TEST_BROWSER_OS='Windows 8.1' TEST_BROWSER_VERSION=11
-  - TEST_BROWSER_NAME=safari TEST_BROWSER_OS='OS X 10.8' TEST_BROWSER_VERSION=6
-  - TEST_BROWSER_NAME=safari TEST_BROWSER_OS='OS X 10.9' TEST_BROWSER_VERSION=7
+  - TEST_BROWSER_NAME=chrome TEST_BROWSER_OS='Windows 10,Linux,OS X 10.11'
+  - TEST_BROWSER_NAME=firefox TEST_BROWSER_OS='Windows 10,Linux,OS X 10.11'
+  - TEST_BROWSER_NAME='internet explorer' TEST_BROWSER_OS='Windows 10'
+  - TEST_BROWSER_NAME=safari TEST_BROWSER_OS='OS X 10.11'
   global:
   - secure: QE5GqGd2hrpQsIgd8dlv3oRUUHqZayomzzQjNXOB81VQi241uz/ru+3GtBZLB5WLZCq/Gj89vbLnR0LN4ixlmPaWv3/WJQGyDGuRD/vMnccVl+rBUP/Hh2zdYwiISIGcrywNAE+KLus/lyt/ahVgzbaRaDSzrM1HaZFT/rndGck=
   - secure: g75sdctEwj0hoLW0Y08Tdv8s5scNzplB6a9EtaJ2vJD9S/bK+AsPqbWesGv1UlrFPCWdbV7Vg61vkmoUjcmb5xhqFIjcM9TlYJoKWeOTsOmnQoSIkIq6gMF1k02+LmKInbPgIzrp3m3jluS1qaOs/EzFpDnJp9hWBiAfXa12Jxk=
diff --git a/tests/test.util.js b/tests/test.util.js
index bce475da..60cdb582 100644
--- a/tests/test.util.js
+++ b/tests/test.util.js
@@ -63,7 +63,19 @@ describe('Utils', function() {
             // environments, so we need to redefine it whilst running these
             // tests.
             origNavigator = Object.getOwnPropertyDescriptor(window, "navigator");
+            if (origNavigator === undefined) {
+                // Object.getOwnPropertyDescriptor() doesn't work
+                // properly in any version of IE
+                this.skip();
+            }
+
             Object.defineProperty(window, "navigator", {value: {}});
+            if (window.navigator.languages !== undefined) {
+                // Object.defineProperty() doesn't work properly in old
+                // versions of Chrome
+                this.skip();
+            }
+
             window.navigator.languages = [];
         });
         afterEach(function () {