diff --git a/tests/pillar/server.sls b/tests/pillar/server.sls
index 8c2853a..21728ca 100644
--- a/tests/pillar/server.sls
+++ b/tests/pillar/server.sls
@@ -22,8 +22,9 @@
         type: slave
         notify: true
         masters:
-          - dns01.domain.com
-          - dns02.domain.com
+          # Masters must be specified by IP address
+          - 8.8.8.8
+          - 8.8.4.4
     dnssec:
       enabled: true
       validation: true