{
  "name": "append-query",
  "version": "2.0.1",
  "description": "Append querystring params to a URL.",
  "main": "index.js",
  "scripts": {
    "test": "node test/*"
  },
  "author": "Cameron Lakenen <cameron@lakenen.com>",
  "license": "MIT",
  "directories": {
    "test": "test"
  },
  "repository": {
    "type": "git",
    "url": "https://github.com/lakenen/node-append-query.git"
  },
  "bugs": {
    "url": "https://github.com/lakenen/node-append-query/issues"
  },
  "homepage": "https://github.com/lakenen/node-append-query",
  "keywords": [
    "string",
    "url",
    "querystring",
    "query params",
    "query",
    "append"
  ],
  "dependencies": {
    "extend": "^1.3.0"
  },
  "devDependencies": {
    "tape": "^2.13.4"
  }
}

{
  "name": "append-query",
  "version": "2.0.2",
  "description": "Append querystring params to a URL.",
  "main": "index.js",
  "scripts": {
    "test": "node test/*"
  },
  "author": "Cameron Lakenen <cameron@lakenen.com>",
  "license": "MIT",
  "directories": {
    "test": "test"
  },
  "repository": {
    "type": "git",
    "url": "https://github.com/lakenen/node-append-query.git"
  },
  "bugs": {
    "url": "https://github.com/lakenen/node-append-query/issues"
  },
  "homepage": "https://github.com/lakenen/node-append-query",
  "keywords": [
    "string",
    "url",
    "querystring",
    "query params",
    "query",
    "append"
  ],
  "dependencies": {
    "extend": "^2.0.0"
  },
  "devDependencies": {
    "tape": "^2.13.4"
  }
}

Move extend upto ^2 to address vulnerability
Move extend upto ^2 to address vulnerability

snyk test append-query@2.0.1

Testing append-query@2.0.1...
✗ Low severity vulnerability found on extend@1.3.0
- desc: Prototype Pollution
- info: https://snyk.io/vuln/npm:extend:20180424
- from: append-query@2.0.1 > extend@1.3.0
Upgrade direct dependency extend@1.3.0 to extend@2.0.2