build: mocha@6.2.3

Author: dougwilson

.github/workflows/ci.yml

@@ -59,10 +59,12 @@ jobs:
 
         - name: Node.js 4.x
           node-version: "4.9"
+          npm-i: mocha@5.2.0
           npm-rm: nyc
 
         - name: Node.js 5.x
           node-version: "5.12"
+          npm-i: mocha@5.2.0
           npm-rm: nyc
 
         - name: Node.js 6.x

package.json

@@ -20,7 +20,7 @@
   "repository": "visionmedia/bytes.js",
   "devDependencies": {
     "eslint": "5.16.0",
-    "mocha": "5.2.0",
+    "mocha": "6.2.3",
     "nyc": "13.3.0"
   },
   "files": [