diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 7ca4ad1dd7..682234d304 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -8,7 +8,7 @@ and also GitHub Actions can check if the code adheres to our policies already be
 Here are a few pointers that could save us from disappointment, we'll try to keep it brief!
 
 1. By submitting a Pull Request you are giving Locutus permission to distribute your code under the MIT License.
-1. Please adhere to our [updated coding standards](/blog/2016/04/standard-coding-style/). Use `npm run lint` to check.
+1. Please adhere to our [updated coding standards](/blog/2016/04/standard-coding-style/). Use `yarn lint` to check.
    Code should:
 
 - Follow the [JavaScript Standard Style](https://standardjs.com/), and in addition:
@@ -125,7 +125,7 @@ Any change to `main` is deployed automatically onto GitHub Pages by CI.
 
 ### Releasing
 
-Any newly pushed git tag is automatically released on npm by CI. To push a new tag:
+Any newly pushed git tag is automatically released on NPM by CI. To push a new tag:
 
 ```bash
 npm version patch -m "Release v%s" && git push --tags
diff --git a/README.md b/README.md
index 1b6ef0537d..b4bf15b79b 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ More info at: https://locutus.io/
 ## Install
 
 ```bash
-npm install locutus
+yarn add locutus
 ```
 
 ## Use
@@ -38,6 +38,3 @@ true
 
 Some guidelines and instructions can be found in [CONTRIBUTING.md](CONTRIBUTING.md)
 
-## Sponsors
-
-:sparkles: thanks to <https://jetbrains.com> for providing a free license to their development tools :heart:
diff --git a/src/_util/util.js b/src/_util/util.js
index 33a9ce737a..5e9f7b8650 100644
--- a/src/_util/util.js
+++ b/src/_util/util.js
@@ -226,7 +226,7 @@ class Util {
       langTitle += ' in JavaScript'
 
       const langData = Object.assign({}, this.langDefaults[params.language], {
-        warning: 'This file is auto generated by `npm run web:inject`, do not edit by hand',
+        warning: 'This file is auto generated by `yarn web:inject`, do not edit by hand',
         type: 'language',
         layout: 'language',
         language: params.language,
@@ -243,7 +243,7 @@ class Util {
       catTitle += ' in JavaScript'
 
       const catData = {
-        warning: 'This file is auto generated by `npm run web:inject`, do not edit by hand',
+        warning: 'This file is auto generated by `yarn web:inject`, do not edit by hand',
         type: 'category',
         layout: 'category',
         language: params.language,
@@ -266,7 +266,7 @@ class Util {
       .replace(/\[functiondashed]/g, params.func_name.replace(/_/g, '-'))
 
     const funcData = {
-      warning: 'This file is auto generated by `npm run web:inject`, do not edit by hand',
+      warning: 'This file is auto generated by `yarn web:inject`, do not edit by hand',
       examples: (params.headKeys.example || []).map(function (lines, i) {
         return lines.join('\n')
       }),
@@ -356,7 +356,7 @@ class Util {
 
     const codez = []
 
-    codez.push('// warning: This file is auto generated by `npm run build:tests`')
+    codez.push('// warning: This file is auto generated by `yarn build:tests`')
     codez.push('// Do not edit by hand!')
 
     // Add globals
diff --git a/test/browser/app.js b/test/browser/app.js
index 246768ad9a..03cff18050 100644
--- a/test/browser/app.js
+++ b/test/browser/app.js
@@ -1,13 +1,12 @@
-// Execute: npm run browser:watch
+// Execute: yarn browser:watch
 // To test this in a local webbrowser with an empty index.html
-var sprintf = require('../../src/php/strings/sprintf')
-var md5 = require('../../src/php/strings/md5')
-var md5File = require('../../src/php/strings/md5_file')
-var sha1 = require('../../src/php/strings/sha1')
-var isArray = require('../../src/php/var/is_array')
-var iniSet = require('../../src/php/info/ini_set')
-var varDump = require('../../src/php/var/var_dump')
-var preg_match = require('../../src/php/pcre/preg_match')
+const sprintf = require('../../src/php/strings/sprintf')
+const md5 = require('../../src/php/strings/md5')
+const sha1 = require('../../src/php/strings/sha1')
+const isArray = require('../../src/php/var/is_array')
+const iniSet = require('../../src/php/info/ini_set')
+const varDump = require('../../src/php/var/var_dump')
+const preg_match = require('../../src/php/pcre/preg_match')
 
 varDump(preg_match('^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,6}$', 'rony@pharaohtools.com')) // Should report true
 varDump(preg_match('^[a-zA-Z0-9._-]+@[a-zA-Z0-9.-]+\\.[a-zA-Z]{2,6}$', 'ronypharaohtools.com')) // Should report flase
@@ -20,4 +19,3 @@ varDump(iniSet('locutus.objectsAsArrays', 'off'))
 varDump(isArray({ name: 'locutus' })) // Should report false
 varDump(sha1('Resistance'))
 varDump(md5('Futile'))
-varDump(md5File('Futile'))