diff --git a/composer.json b/composer.json
index 517070544..278f3e1aa 100644
--- a/composer.json
+++ b/composer.json
@@ -47,6 +47,7 @@
         "drupal/pathauto": "^1.8",
         "drupal/publication_date": "^2.0@beta",
         "drupal/rdf": "^2.0",
+        "drupal/readonly_field_widget": "^1.0",
         "drupal/redirect": "^1.6",
         "drupal/role_delegation": "^1.1",
         "drupal/scheduler": "^1.3",
diff --git a/modules/helfi_react_search/helfi_react_search.install b/modules/helfi_react_search/helfi_react_search.install
index a99a1710c..fa938b697 100644
--- a/modules/helfi_react_search/helfi_react_search.install
+++ b/modules/helfi_react_search/helfi_react_search.install
@@ -98,6 +98,9 @@ function helfi_react_search_update_9005() {
  * UHF-9613: Update events list field descriptions and translation.
  */
 function helfi_react_search_update_9006() : void {
+  $module_installer = \Drupal::service('module_installer');
+  $module_installer->install(['readonly_field_widget']);
+
   // Make sure the configurations are correctly installed.
   \Drupal::service('helfi_platform_config.config_update_helper')
     ->update('helfi_react_search');