diff --git a/aws/templates/mds/mds.yaml b/aws/templates/mds/mds.yaml
index 28c52a46..241bb981 100755
--- a/aws/templates/mds/mds.yaml
+++ b/aws/templates/mds/mds.yaml
@@ -115,7 +115,7 @@ Parameters:
   MDSInstanceType:
     Description: The instance type of the Multi-Domain Server.
     Type: String
-    Default: m5.12xlarge
+    Default: m5.2xlarge
     AllowedValues:
       - c5.large
       - c5.xlarge