diff --git a/scripts/upgrade b/scripts/upgrade
index e770e63..3c7b18c 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -244,7 +244,7 @@ pushd "$final_path/live"
 	ynh_exec_as $app $ynh_ruby_load_path $ld_preload bin/bundle config set force_ruby_platform true --quiet
 	ynh_exec_as $app $ynh_ruby_load_path $ld_preload bin/bundle install -j$(getconf _NPROCESSORS_ONLN)
 	ynh_use_nodejs
-	ynh_exec_as $app $ynh_node_load_PATH yarn install --pure-lockfile
+	ynh_exec_as $app $ynh_node_load_PATH yarn install --pure-lockfile --production
 	ynh_exec_warn_less ynh_exec_as $app RAILS_ENV=production $ynh_ruby_load_path $ld_preload bin/bundle exec rails assets:clean
 	ynh_exec_warn_less ynh_exec_as $app RAILS_ENV=production $ynh_ruby_load_path $ld_preload bin/bundle exec rails assets:precompile
 	ynh_exec_warn_less ynh_exec_as $app RAILS_ENV=production $ynh_ruby_load_path $ld_preload bin/bundle exec rails db:migrate