diff --git a/site_users.install b/site_users.install
index 95ae700..13f795f 100644
--- a/site_users.install
+++ b/site_users.install
@@ -287,3 +287,75 @@ function site_users_update_10002() {
 
   return t('Social links field created successfully.');
 }
+
+/**
+ * Corrige mapeamentos LDAP com prov_events nulo na config ativa.
+ */
+function site_users_update_10003() {
+  $config = \Drupal::configFactory()->getEditable('ldap_user.settings');
+  $mappings = $config->get('ldapUserSyncMappings');
+
+  if (empty($mappings)) {
+    return t('Nenhum mapeamento LDAP encontrado.');
+  }
+
+  $changed = FALSE;
+  foreach ($mappings as $direction => $direction_mappings) {
+    foreach ($direction_mappings as $id => $mapping) {
+      if (!is_array($mapping['prov_events'] ?? NULL)) {
+        $mappings[$direction][$id]['prov_events'] = [];
+        $changed = TRUE;
+      }
+    }
+  }
+
+  if ($changed) {
+    $config->set('ldapUserSyncMappings', $mappings)->save();
+    return t('Mapeamentos LDAP corrigidos: prov_events nulo substituído por array vazio.');
+  }
+
+  return t('Nenhuma correção necessária nos mapeamentos LDAP.');
+}
+
+/**
+ * Corrige mapeamentos LDAP com campos de string nulos na config ativa.
+ */
+function site_users_update_10004() {
+  $config = \Drupal::configFactory()->getEditable('ldap_user.settings');
+  $mappings = $config->get('ldapUserSyncMappings');
+
+  if (empty($mappings)) {
+    return t('Nenhum mapeamento LDAP encontrado.');
+  }
+
+  $changed = FALSE;
+  $string_defaults = [
+    'ldap_attr' => '',
+    'user_attr' => '',
+    'user_tokens' => '',
+    'config_module' => 'ldap_user',
+    'prov_module' => 'ldap_user',
+  ];
+
+  foreach ($mappings as $direction => $direction_mappings) {
+    foreach ($direction_mappings as $id => $mapping) {
+      foreach ($string_defaults as $field => $default) {
+        if (!isset($mapping[$field]) || !is_string($mapping[$field])) {
+          $mappings[$direction][$id][$field] = $default;
+          $changed = TRUE;
+        }
+      }
+      if (!isset($mapping['convert'])) {
+        $mappings[$direction][$id]['convert'] = FALSE;
+        $changed = TRUE;
+      }
+    }
+  }
+
+  if ($changed) {
+    $config->set('ldapUserSyncMappings', $mappings)->save();
+    return t('Mapeamentos LDAP corrigidos: campos de string nulos normalizados.');
+  }
+
+  return t('Nenhuma correção necessária nos mapeamentos LDAP.');
+}