diff --git a/scripts/upgrade b/scripts/upgrade
index 8728321..c576342 100755
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -60,17 +60,6 @@ ynh_script_progression --message="Installing app with Composer..." --weight=1
 
 ynh_install_composer
 
-#=================================================
-# INSTALL LYCHEE
-#=================================================
-ynh_script_progression --message="Installing $app..." --weight=10
-
-pushd "$install_dir"
- 	ynh_use_nodejs
-	ynh_exec_warn_less sudo -u "$app" env "$ynh_node_load_PATH" "$ynh_npm" install
-	ynh_exec_warn_less sudo -u "$app" env "$ynh_node_load_PATH" NODE_ENV=production "$ynh_npm" run build
-popd
-
 #=================================================
 # BUILDING
 #=================================================