--- a/contrib/automation/hgautomation/aws.py	Mon Jul 22 17:44:19 2019 -0700
+++ b/contrib/automation/hgautomation/aws.py	Mon Jul 22 18:52:58 2019 -0700
@@ -1048,7 +1048,7 @@
 
     image = find_image(ec2resource,
                        '801119661308',
-                       'Windows_Server-2019-English-Full-Base-2019.02.13')
+                       'Windows_Server-2019-English-Full-Base-2019.07.12')
 
     config = {
         'BlockDeviceMappings': [