diff --git a/zsh/aliases b/zsh/aliases
index 1bd7afa..e2860e0 100644
--- a/zsh/aliases
+++ b/zsh/aliases
@@ -52,6 +52,8 @@ alias hca='heroku config:add'
 alias hcu='heroku config:unset'
 alias hcr='heroku config:unset'
 alias hl='heroku logs -t -n 5000'
+alias hmo='heroku maintenance:on'
+alias hmoo='heroku maintenance:off'
 alias hr='heroku releases'
 alias hrs='heroku restart'
 alias irb='irb --readline -r irb/completion'