diff --git a/scripts/upgrade b/scripts/upgrade
index 3b6c09c..483d986 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -102,6 +102,15 @@ ynh_script_progression --message="Upgrading NGINX web server configuration..." -
 # Create a dedicated NGINX config
 ynh_add_nginx_config
 
+#=================================================
+# INSTALL DEPENDENCIES
+#=================================================
+ynh_script_progression --message="Installing dependencies..." --weight=12
+
+ynh_install_app_dependencies $pkg_dependencies
+
+ynh_install_nodejs --nodejs_version=$nodejs_version
+
 #=================================================
 # CREATE DEDICATED USER
 #=================================================