diff --git a/update.sh b/update.sh
index 5993723..c1e9fb1 100755
--- a/update.sh
+++ b/update.sh
@@ -85,6 +85,8 @@ fi
 
 git config --global diff.submodule log
 git submodule update
+git submodule foreach git reset --hard && git checkout master && git pull
+
 cecho g "######################"
 cecho g " check dependencies of the frontend with yarn "
 cecho g "######################"
@@ -137,6 +139,9 @@ mv polyfills-es5* es5-polyfills.js
 mv polyfills* other-polyfills.js
 mv scripts* scripts.js
 mv styles* styles.css
+
+chown www-data:www-data . -R
+
 cecho b " finished at ------- $(date) -------  "
 cecho g "##################################################################"
 cecho g " "