diff --git a/.travis.yml b/.travis.yml
index 172f706..c14aa95 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,5 @@
 language: node_js
-sudo: required
+sudo: 'false'
 before_script:
   - npm install -g polymer-cli
   - polymer install --variants
@@ -13,20 +13,19 @@ before_script:
 env:
   global:
     - secure: >-
-        JOd5P49LsE77iYvmnXcjrv4UOPBz5iXed34LnK4FB8+hJ79wFan/HuymA8mof1FDnyBYFqV9Zgmeo2BAmFxomtADwLL6fcX34fh5r0JPuM6pv1ovoaE/yNBrt3o7RfhQ9/VkezjGBFkrXF8ciw2e+OHu6aEcAvdqG8O0UqWHVn4=
+        bS/K6VaNmFe29US/L/DyVggFf0oJF71OvhdMCYwhm9aaxatKwKpXJjBYjyuiDASxf9fLlyVWh/5wkIKXw3uMCs4AESf2iqPvFl8f9CdhvE6mj8xjQ8KjrF6rsm7vbJdAgKzw3mg7M8s5VS+3acC7hospm/n0LX5z2wUyvWy0EWo=
     - secure: >-
-        HV8pPsLmz3GsoAyAnJosqMPVL/2QA/0G71b9KTrXGvnydRwPfaxPmgklrVs0S8LlS4t1OzJcL1M8p/k2ulWL/OsmG+KVB2LRB51JsrhfDEb+XF9VpXFXv5TSx2Bv9RE4gBlY2YaVnpq5OsL9oQDLmwMvsEcPZPF/nRfnbG6zD6g=
-node_js: stable
+        SesBHWzkY+KIPS4cg75+1tG4RdP+2y1ihOj1ib1YmjhVXJ+tiCc9B5GBxR/ARfYOePyhamJ2qT29qG47lr/ACagv33CHK5cRl7YZTLT9euYBYCzMSZxDRgXr1jfbKkbVCBKBC2S6it/1Y3QhA/QPiLIt0w/Wk8d/6s4mydvyh7U=
+node_js: '9'
 addons:
   firefox: latest
-  apt:
-    sources:
-      - google-chrome
-    packages:
-      - google-chrome-stable
+  chrome: stable
 script:
   - xvfb-run polymer test
   - >-
     if [ "${TRAVIS_PULL_REQUEST}" = "false" ]; then polymer test -s 'default';
     fi
 dist: trusty
+cache:
+  directories:
+    - node_modules
diff --git a/package.json b/package.json
index c6e8642..7cd6586 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
   },
   "license": "BSD-3-Clause",
   "devDependencies": {
-    "@polymer/gen-typescript-declarations": "^1.2.0",
+    "@polymer/gen-typescript-declarations": "^1.2.2",
     "bower": "^1.8.0",
     "webmat": "^0.2.0"
   },
diff --git a/wct.conf.json b/wct.conf.json
new file mode 100644
index 0000000..bb2d5a8
--- /dev/null
+++ b/wct.conf.json
@@ -0,0 +1,16 @@
+{
+  "plugins": {
+    "local": {
+      "browserOptions": {
+        "chrome": [
+          "no-sandbox",
+          "headless",
+          "disable-gpu"
+        ],
+        "firefox": [
+          "-headless"
+        ]
+      }
+    }
+  }
+}
\ No newline at end of file