diff --git a/Library/Contributions/brew_bash_completion.sh b/Library/Contributions/brew_bash_completion.sh
index 5b9bef45c2..52b7f6fba9 100644
--- a/Library/Contributions/brew_bash_completion.sh
+++ b/Library/Contributions/brew_bash_completion.sh
@@ -50,10 +50,13 @@ _brew_to_completion()
         return
         ;;
     # Commands that take an existing brew
-    abv|cleanup|link|list|ln|ls|remove|rm|test|uninstall|unlink|upgrade)
+    abv|cleanup|link|list|ln|ls|remove|rm|test|uninstall|unlink)
         COMPREPLY=( $(compgen -W "$(\ls $(brew --cellar))" -- ${cur}) )
         return
         ;;
+    # Commands that take an outdated brew
+    upgrade)
+        COMPREPLY=( $(compgen -W "$(brew outdated --quiet)" -- ${cur}) )
     esac
 }