diff --git a/scripts/upgrade b/scripts/upgrade
index 6d4e9a5..37548c5 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -36,7 +36,9 @@ then
     ynh_setup_source --dest_dir="$install_dir" --keep="$install_dir/config.toml"
 fi
 
+chmod -R o-rwx "$install_dir"
 chown -R $app:www-data "$install_dir"
+chmod +x "$install_dir/meilisearch"
 
 #=================================================
 # SETUP SYSTEMD