diff --git a/scripts/install b/scripts/install
index 0585b26..a6e0cf8 100755
--- a/scripts/install
+++ b/scripts/install
@@ -192,6 +192,7 @@ pushd "$final_path/live"
 	bundle install
 	ynh_exec_warn_less ynh_exec_as $app env RAILS_ENV=production RACK_ENV=production $ynh_ruby_load_path bin/rails db:migrate
 	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn add rails-ujs
+	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn add graphql-ws
 	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn install
 	ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn cache clean
 	sed -i 's/require "decidim\/rails"/require "decidim\/rails"\nrequire "action_cable\/engine"/' config/application.rb
diff --git a/scripts/upgrade b/scripts/upgrade
index 02aacd1..87d5a51 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -169,6 +169,7 @@ then
 		ynh_exec_warn_less ynh_exec_as $app env RAILS_ENV=production RACK_ENV=production $ynh_ruby_load_path bin/rails decidim:upgrade
 		ynh_exec_warn_less ynh_exec_as $app env RAILS_ENV=production RACK_ENV=production $ynh_ruby_load_path bin/rails db:migrate
 		ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn add rails-ujs
+		ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn add graphql-ws
 		ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn install
 		ynh_exec_warn_less ynh_exec_as $app env $ynh_node_load_PATH yarn cache clean
 		ynh_exec_warn_less ynh_exec_as $app env RAILS_ENV=production RACK_ENV=production $ynh_ruby_load_path bin/rails assets:precompile