diff --git a/upgrade.sh b/upgrade.sh
index 473ff76..bfaad00 100755
--- a/upgrade.sh
+++ b/upgrade.sh
@@ -1,4 +1,10 @@
-#!/usr/bin/env bash
+#!/usr/bin/env zsh
+
+DOTFILES_PATH="${0:h}"
+cd "$DOTFILES_PATH" || exit 1
 
 git pull --rebase --stat origin master
 git submodule update --init --recursive --remote
+
+source "./zgen/zgen.zsh"
+zgen update