diff --git a/core/admin/mailu/models.py b/core/admin/mailu/models.py
index f5fe3b5e..300d8d8c 100644
--- a/core/admin/mailu/models.py
+++ b/core/admin/mailu/models.py
@@ -19,7 +19,8 @@ import os
 import hmac
 import smtplib
 import idna
-import dns
+import dns.resolver
+import dns.exception
 
 from flask import current_app as app
 from sqlalchemy.ext import declarative
diff --git a/core/admin/mailu/ui/views/domains.py b/core/admin/mailu/ui/views/domains.py
index f394ce7d..a48bb154 100644
--- a/core/admin/mailu/ui/views/domains.py
+++ b/core/admin/mailu/ui/views/domains.py
@@ -5,7 +5,6 @@ from flask import current_app as app
 import flask
 import flask_login
 import wtforms_components
-import dns.resolver
 
 
 @ui.route('/domain', methods=['GET'])
diff --git a/core/admin/mailu/utils.py b/core/admin/mailu/utils.py
index eddd6848..d9cc1894 100644
--- a/core/admin/mailu/utils.py
+++ b/core/admin/mailu/utils.py
@@ -6,8 +6,12 @@ try:
 except ImportError:
     import pickle
 
-import dns
 import dns.resolver
+import dns.exception
+import dns.flags
+import dns.rdtypes
+import dns.rdatatype
+import dns.rdataclass
 
 import hmac
 import secrets
diff --git a/core/admin/requirements-prod.txt b/core/admin/requirements-prod.txt
index 9bd131fb..ecb0b8ed 100644
--- a/core/admin/requirements-prod.txt
+++ b/core/admin/requirements-prod.txt
@@ -14,7 +14,7 @@ cryptography==35.0.0
 decorator==5.1.0
 distlib==0.3.1
 distro==1.5.0
-dnspython==1.16.0
+dnspython==2.1.0
 dominate==2.3.5
 email-validator==1.1.3
 Flask==1.0.2