diff --git a/.npmignore b/.npmignore
deleted file mode 100644
index b61c4fa..0000000
--- a/.npmignore
+++ /dev/null
@@ -1,3 +0,0 @@
-src
-__tests__
-__fixtures__
diff --git a/package.json b/package.json
index aeb1084..8622d41 100644
--- a/package.json
+++ b/package.json
@@ -4,6 +4,10 @@
   "description": "Get a full fake REST API with zero coding in less than 30 seconds",
   "main": "./lib/server/index.js",
   "bin": "./lib/cli/bin.js",
+  "files": [
+    "lib",
+    "public"
+  ],
   "scripts": {
     "postinstall": "husky install",
     "test": "npm run build && cross-env NODE_ENV=test jest && npm run lint",
diff --git a/postinstall.js b/postinstall.js
deleted file mode 100644
index e7c2e1a..0000000
--- a/postinstall.js
+++ /dev/null
@@ -1,10 +0,0 @@
-const chalk = require('chalk')
-
-console.log(
-  'Like JSON Server? You can support the project on',
-  chalk.bold('GitHub Sponsors')
-)
-console.log(
-  chalk.underline('https://github.com/users/typicode/sponsorship'),
-  chalk.red('❤')
-)