diff --git a/servers/puppet/modules/zulip/files/nagios3/conf.d/hosts.cfg b/servers/puppet/modules/zulip/files/nagios3/conf.d/hosts.cfg
index cf4844e382..9b7fd87f0d 100644
--- a/servers/puppet/modules/zulip/files/nagios3/conf.d/hosts.cfg
+++ b/servers/puppet/modules/zulip/files/nagios3/conf.d/hosts.cfg
@@ -26,7 +26,7 @@ define host{
        use              generic-host
        host_name        git
        alias            git
-       address          git.humbughq.com
+       address          git.zulip.net
        hostgroups       all,web,not_pageable_servers
        }
 
@@ -34,7 +34,7 @@ define host{
        use              generic-host
        host_name        zmirror
        alias            zmirror
-       address          zmirror.humbughq.com
+       address          zmirror.zulip.net
        hostgroups       all,zmirror,pageable_servers
        }
 
@@ -50,7 +50,7 @@ define host{
        use              generic-host
        host_name        bots
        alias            bots
-       address          bots.humbughq.com
+       address          bots.zulip.net
        hostgroups       all,not_pageable_servers
        }
 
@@ -58,7 +58,7 @@ define host{
        use              generic-host
        host_name        postgres0
        alias            postgres0
-       address          postgres0.humbughq.com
+       address          postgres0.zulip.net
        hostgroups       all,postgres,pageable_servers
        }
 
@@ -66,7 +66,7 @@ define host{
        use              generic-host
        host_name        postgres1
        alias            postgres1
-       address          postgres1.humbughq.com
+       address          postgres1.zulip.net
        hostgroups       all,postgres,pageable_servers
        }