diff --git a/HISTORY.md b/HISTORY.md
index eb8db56d5..a98c6b49c 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -3,6 +3,7 @@
 **Table of Contents**  *generated with [DocToc](https://github.com/thlorenz/doctoc)*
 
 - [Release History](#release-history)  
+  - [v4.2.0](#v420)
   - [v4.1.1](#v411)
   - [v4.1.0](#v410)
   - [v4.0.0](#v400)
@@ -21,6 +22,9 @@
 
 # Release History
 
+## v4.2.0
+ * adding Mac App Store brew (`mas`) and `mas upgrade` to `update` alias
+
 ## v4.1.1
  * fix `solarized dark` again for mocha test output coloring
 
diff --git a/config.js b/config.js
index f94241c18..e85ef2eb5 100644
--- a/config.js
+++ b/config.js
@@ -27,6 +27,8 @@ module.exports = {
     'imagesnap',
     // jq is a sort of JSON grep
     'jq',
+    // Mac App Store CLI: https://github.com/mas-cli/mas
+    'mas',
     // Install some other useful utilities like `sponge`
     'moreutils',
     'nmap',
diff --git a/homedir/.shellaliases b/homedir/.shellaliases
index 5b916fe38..ab94183a0 100644
--- a/homedir/.shellaliases
+++ b/homedir/.shellaliases
@@ -87,6 +87,6 @@ alias spotoff="sudo mdutil -a -i off"
 alias spoton="sudo mdutil -a -i on"
 
 # Get macOS Software Updates, and update installed Ruby gems, Homebrew, npm, and their installed packages
-alias update='sudo softwareupdate -i -a; brew update; brew upgrade; brew cleanup; npm install npm -g; npm update -g; sudo gem update --system; sudo gem update; sudo gem cleanup'
+alias update='sudo softwareupdate -i -a; brew update; brew upgrade; brew cleanup; mas upgrade; npm install npm -g; npm update -g; sudo gem update --system; sudo gem update; sudo gem cleanup'
 
 alias vtop="vtop --theme wizard"
diff --git a/package.json b/package.json
index 86c09ad7c..7a41ffbc6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "dotfiles",
-  "version": "4.1.1",
+  "version": "4.2.0",
   "description": "atomantic dotfiles for osx",
   "main": "index.js",
   "scripts": {