diff --git a/README.md b/README.md
index 92ae0d5..5949aac 100644
--- a/README.md
+++ b/README.md
@@ -31,6 +31,9 @@ Alternative front-end to YouTube
 
 You can configure Invidious by modifying the configuration file `/var/www/invidious/config/config.yml` with the help of this [documentation](https://github.com/iv-org/documentation/blob/master/Configuration.md).
 
+## Limitations
+
+* Invidious needs more than 2GB of RAM to build.
 ## Documentation and resources
 
 * Official user documentation: https://github.com/iv-org/documentation
diff --git a/README_fr.md b/README_fr.md
index d463ded..2fd95bc 100644
--- a/README_fr.md
+++ b/README_fr.md
@@ -27,6 +27,9 @@ Front-end alternatif à YouTube
 
 Vous pouvez configurer Invidious en modifiant le fichier de configuration `/var/www/invidious/config/config.yaml` avec l'aide de cette [documentation](https://github.com/iv-org/documentation/blob/master/Configuration.md).
 
+## Limitations
+
+* Invidious a besoin de plus de 3Go de RAM pour être installé.
 ## Documentations et ressources
 
 * Documentation officielle utilisateur : https://github.com/iv-org/documentation
diff --git a/scripts/upgrade b/scripts/upgrade
index 6c7cf4a..bad4e37 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -81,6 +81,7 @@ ynh_script_progression --message="Upgrading dependencies..." --weight=8
 
 ynh_exec_warn_less ynh_install_app_dependencies $pkg_dependencies
 
+
 tempdir="$(mktemp -d)"
 ynh_setup_source --dest_dir=$tempdir --source_id=crystal
 ynh_exec_warn_less dpkg -i $tempdir/crystal_1.0.0-1_amd64.deb