diff --git a/cmdeploy/src/cmdeploy/dns.py b/cmdeploy/src/cmdeploy/dns.py
index f9c4f88..f13035b 100644
--- a/cmdeploy/src/cmdeploy/dns.py
+++ b/cmdeploy/src/cmdeploy/dns.py
@@ -11,6 +11,11 @@ class DNS:
         self.session = requests.Session()
         self.out = out
         self.ssh = f"ssh root@{mail_domain} -- "
+        try:
+            self.shell(f"apt update")
+            self.shell(f"apt install -y dnsutils")
+        except subprocess.CalledProcessError:
+            pass
         try:
             self.shell(f"unbound-control flush_zone {mail_domain}")
         except subprocess.CalledProcessError: