diff --git a/README.md b/README.md
index 63db487..5f4159d 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,15 @@
 # yarn-completion ![](https://github.com/dsifford/yarn-completion/workflows/build/badge.svg)
 
-> Bash ^4.x completion for [Yarn](https://github.com/yarnpkg/yarn)
+> Bash ^4.x completion for [Yarn CLI 4.x](https://yarnpkg.com/cli)
+
+## Installation on Debian Linux
+
+Just grab the file and move it to bash completion global folder:
+
+```shell
+wget https://raw.githubusercontent.com/ildella/yarn-completion/master/yarn-completion.bash yarn-completion.bash
+sudo mv yarn-completion.bash /etc/bash_completion.d
+```
 
 ## Installation
 
@@ -9,10 +18,11 @@ To enable on-demand completion loading, download the completion file to the pred
 ```sh
 mkdir -p "${BASH_COMPLETION_USER_DIR:-${XDG_DATA_HOME:-$HOME/.local/share}/bash-completion}/completions/"
 curl -o "${BASH_COMPLETION_USER_DIR:-${XDG_DATA_HOME:-$HOME/.local/share}/bash-completion}/completions/yarn" \
-	https://raw.githubusercontent.com/dsifford/yarn-completion/master/yarn-completion.bash
+	https://raw.githubusercontent.com/ildella/yarn-completion/master/yarn-completion.bash
 ```
 
 ### Installation on macOS with Homebrew
+
 To use this script on macOS, we need to install [bash](https://www.gnu.org/software/bash/) and [bash-completion](https://github.com/scop/bash-completion) in addition to the above script.
 
 1.  `bash` version ^4.x.x is **required**.
diff --git a/yarn-completion.bash b/yarn-completion.bash
index 5eb68a7..269e251 100644
--- a/yarn-completion.bash
+++ b/yarn-completion.bash
@@ -377,10 +377,9 @@ _yarn_config() {
 	((depth++))
 	declare cmd
 	declare subcommands=(
-		delete
 		get
-		list
 		set
+		unset
 	)
 	declare known_keys=(
 		ignore-optional
@@ -477,7 +476,6 @@ _yarn_global() {
 		bin
 		list
 		remove
-		upgrade
 		upgrade-interactive
 	)
 	cmdlist="@($(tr ' ' '|' <<< "${subcommands[*]}"))"
@@ -843,42 +841,6 @@ _yarn_unplug() {
 	return 1
 }
 
-_yarn_upgrade() {
-	((depth++))
-	declare cmd dependencies devDependencies
-	flags=(
-		--audit -A
-		--caret -C
-		--exact -E
-		--latest -L
-		--pattern -P
-		--scope -S
-		--tilde -T
-	)
-	__yarn_get_command -d 1
-	case "$cmd" in
-		global)
-			dependencies=$(__yarn_get_package_fields -g dependencies)
-			devDependencies=''
-			;;
-		upgrade)
-			dependencies=$(__yarn_get_package_fields dependencies)
-			devDependencies=$(__yarn_get_package_fields devDependencies)
-			;;
-		*)
-			return 1
-			;;
-	esac
-	case "$cur" in
-		-*) ;;
-		*)
-			COMPREPLY=($(compgen -W "$dependencies $devDependencies" -- "$cur"))
-			return 0
-			;;
-	esac
-	return 1
-}
-
 _yarn_upgrade_interactive() {
 	((depth++))
 	flags=(
@@ -1029,44 +991,36 @@ _yarn() {
 	declare -a words
 	declare -i cword counter=1 depth=1
 	declare -ar commands=(
-		access
 		add
-		audit
-		autoclean
 		bin
 		cache
-		check
 		config
+		constraints
 		create
+		dedupe
+		dix
 		exec
-		generate-lock-entry
-		global
-		help
-		import
+		explain
 		info
 		init
 		install
-		licenses
 		link
-		list
-		login
-		logout
 		node
-		outdated
-		owner
+		npm
 		pack
-		policies
-		publish
+		patch-commit
+		patch
+		plugin
+		rebuild
 		remove
 		run
-		tag
-		team
+		search
+		set
+		stage
 		unlink
 		unplug
-		upgrade
 		upgrade-interactive
 		version
-		versions
 		why
 		workspace
 		workspaces