diff --git a/requirments-old.txt b/requirments-old.txt
index 8b991d367..427741460 100644
--- a/requirments-old.txt
+++ b/requirments-old.txt
@@ -19,7 +19,7 @@ oauthlib==3.1.0
 paramiko==2.9.2
 pexpect==4.8.0
 psutil==5.7.3
-py3dns==3.2.1
+py3dns==4.0.2
 pyOpenSSL==19.1.0
 pysftp
 pyotp