diff --git a/Gemfile b/Gemfile
index 0890ef679..4dbf8249a 100644
--- a/Gemfile
+++ b/Gemfile
@@ -67,6 +67,7 @@ gem 'rails'
 gem 'rails-i18n' # Locales par défaut
 gem 'rake-progressbar', require: false
 gem 'react-rails'
+gem 'rexml' # add missing gem due to ruby3 (https://github.com/Shopify/bootsnap/issues/325)
 gem 'rgeo-geojson'
 gem 'rqrcode'
 gem 'ruby-saml-idp'
diff --git a/Gemfile.lock b/Gemfile.lock
index 796523e94..9088549ba 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -858,6 +858,7 @@ DEPENDENCIES
   rails-i18n
   rake-progressbar
   react-rails
+  rexml
   rgeo-geojson
   rqrcode
   rspec-rails