Update Travis node version

.travis.yml

@@ -1,11 +1,11 @@
 language: node_js
 node_js:
-  - "8"
+  - "10"
 script:
   - npm run eslint
   - npm run test -- --failTaskOnError --suppressPassed
 
 after_success:
 ## We only need to run coveralls for one node version (doesn't matter which one).
 ## We also ignore publishing failures, since restarting an existing travis build would otherwise break.
-  - if node --version | grep -q ^v8 ; npm run coverage && npm run coveralls; fi
+  - npm run coverage && npm run coveralls;

package.json

@@ -26,25 +26,25 @@
     "node": ">=4.0.0"
   },
   "dependencies": {
-    "bluebird": "^3.5.5",
-    "cesium": "^1.58.1",
-    "fs-extra": "^8.0.1",
-    "jpeg-js": "^0.3.5",
+    "bluebird": "^3.7.2",
+    "cesium": "^1.66.0",
+    "fs-extra": "^8.1.0",
+    "jpeg-js": "^0.3.6",
     "mime": "^2.4.4",
     "pngjs": "^3.4.0",
-    "yargs": "^14.2.0"
+    "yargs": "^15.1.0"
   },
   "devDependencies": {
-    "cloc": "^2.5.0",
-    "coveralls": "^3.0.4",
-    "eslint": "^6.0.0",
-    "eslint-config-cesium": "^8.0.0",
+    "cloc": "^2.5.1",
+    "coveralls": "^3.0.9",
+    "eslint": "^6.8.0",
+    "eslint-config-cesium": "^8.0.1",
     "gulp": "^4.0.2",
-    "jasmine": "^3.4.0",
+    "jasmine": "^3.5.0",
     "jasmine-spec-reporter": "^4.2.1",
-    "jsdoc": "^3.6.2",
-    "nyc": "^14.1.1",
-    "open": "^7.0.0",
+    "jsdoc": "^3.6.3",
+    "nyc": "^15.0.0",
+    "open": "^7.0.2",
     "requirejs": "^2.3.6"
   },
   "scripts": {