diff --git a/apps/jumpserver/settings.py b/apps/jumpserver/settings.py
index b75b73ec9..af72292f7 100644
--- a/apps/jumpserver/settings.py
+++ b/apps/jumpserver/settings.py
@@ -330,7 +330,7 @@ AUTH_LDAP_GROUP_SEARCH = LDAPSearch(
     AUTH_LDAP_GROUP_SEARCH_OU, ldap.SCOPE_SUBTREE, AUTH_LDAP_GROUP_SEARCH_FILTER
 )
 AUTH_LDAP_CONNECTION_OPTIONS = {
-    ldap.TIMEOUT: 5
+    ldap.OPT_TIMEOUT: 5
 }
 AUTH_LDAP_ALWAYS_UPDATE_USER = True
 AUTH_LDAP_BACKEND = 'django_auth_ldap.backend.LDAPBackend'