diff --git a/.gitignore b/.gitignore
index c08d1d39..027fffe5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,11 +2,18 @@
 logs
 *.log
 npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
 
 # Runtime data
 pids
 *.pid
 *.seed
+*.pid.lock
 
 # Directory for instrumented libs generated by jscoverage/JSCover
 lib-cov
@@ -17,26 +24,67 @@ coverage
 # nyc test coverage
 .nyc_output
 
-# Grunt intermediate storage (http://gruntjs.com/creating-plugins#storing-task-files)
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
 .grunt
 
+# Bower dependency directory (https://bower.io/)
+bower_components
+
 # node-waf configuration
 .lock-wscript
 
-# Compiled binary addons (http://nodejs.org/api/addons.html)
+# Compiled binary addons (https://nodejs.org/api/addons.html)
 build/Release
 
 # Dependency directories
-node_modules
-jspm_packages
+node_modules/
+jspm_packages/
+
+# TypeScript v1 declaration files
+typings/
 
 # Optional npm cache directory
 .npm
 
+# Optional eslint cache
+.eslintcache
+
 # Optional REPL history
 .node_repl_history
 
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variables file
+.env
+.env.test
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+
+# next.js build output
+.next
+
+# nuxt.js build output
+.nuxt
+
+# vuepress build output
+.vuepress/dist
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+
 dist/
 tmp/
 *.swp
-.DS_Store
+.DS_Store
\ No newline at end of file
diff --git a/.npmignore b/.npmignore
deleted file mode 100644
index 775e9f7e..00000000
--- a/.npmignore
+++ /dev/null
@@ -1,7 +0,0 @@
-.github/
-docs/
-test/
-.eslintrc.js
-.travis.yml
-Dockerfile
-.dockerignore
\ No newline at end of file
diff --git a/.travis.yml b/.travis.yml
index 247f9281..43a64d0f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,6 +1,8 @@
 language: node_js
 node_js:
+  - 8
   - 10
+  - stable
 
 os:
   - linux
diff --git a/package.json b/package.json
index 8ae7477b..0708500b 100644
--- a/package.json
+++ b/package.json
@@ -2,13 +2,19 @@
   "name": "vsc-leetcode-cli",
   "version": "2.6.4",
   "description": "A cli tool to enjoy leetcode!",
-  "preferGlobal": "true",
   "engines": {
     "node": ">=4"
   },
   "bin": {
     "leetcode": "./bin/leetcode"
   },
+  "files": [
+    "bin",
+    "colors",
+    "icons",
+    "lib",
+    "templates"
+  ],
   "scripts": {
     "lint": "eslint lib/ test/",
     "test": "npm run lint && nyc mocha test test/plugins && nyc report --reporter=lcov",