diff --git a/bm_mcc_mosk/utils/tsl_gen.sh b/bm_mcc_mosk/utils/tsl_gen.sh
index 41af942..acda777 100644
--- a/bm_mcc_mosk/utils/tsl_gen.sh
+++ b/bm_mcc_mosk/utils/tsl_gen.sh
@@ -41,9 +41,9 @@
 
 tee server-csr.json << EOF
 {
-    "CN": "*.subdomain.team.sustaining",
+    "CN": "*.mnt-bm.mirantis.net",
     "hosts":     [
-        "*.subdomain.team.sustaining"
+        "*.mnt-bm.mirantis.net"
     ],
     "key":     {
         "algo": "rsa",
diff --git a/bm_mcc_mosk/utils/update_kube_dns_conf.py b/bm_mcc_mosk/utils/update_kube_dns_conf.py
index 3658a21..ec79649 100644
--- a/bm_mcc_mosk/utils/update_kube_dns_conf.py
+++ b/bm_mcc_mosk/utils/update_kube_dns_conf.py
@@ -3,7 +3,7 @@
 
 assert len(sys.argv) > 1
 internal_ip = sys.argv[1]
-domain = "subdomain.team.sustaining"
+domain = "mnt-bm.mirantis.net"
 template = """
 {domain}:53 {{
     errors