diff --git a/tools/upgrade.sh b/tools/upgrade.sh
index 5f0a81f1d..0b5110dc9 100644
--- a/tools/upgrade.sh
+++ b/tools/upgrade.sh
@@ -1,5 +1,6 @@
 printf '\033[0;34m%s\033[0m\n' "Upgrading Oh My Zsh"
 cd "$ZSH"
+git submodule update
 if git pull --rebase --stat origin master
 then
   printf '\033[0;32m%s\033[0m\n' '         __                                     __   '