diff --git a/example.init.yaml b/example.init.yaml
index 9773f4b..889ff80 100644
--- a/example.init.yaml
+++ b/example.init.yaml
@@ -277,7 +277,7 @@ customers_url: "https://raw.githubusercontent.com/openfaas/openfaas-cloud/master
 ### Build logs from buildkit are stored in S3
 ### Defaults to in-cluster deployment of Minio. AWS S3 is also possible
 s3:
-  s3_url: cloud-minio.openfaas.svc.cluster.local:9000
+  s3_url: minio.openfaas.svc.cluster.local:9000
   s3_region: us-east-1
   s3_tls: false
   s3_bucket: pipeline
diff --git a/templates/stack.yml b/templates/stack.yml
index f0ef488..03f9550 100644
--- a/templates/stack.yml
+++ b/templates/stack.yml
@@ -13,7 +13,7 @@ functions:
       role: openfaas-system
       com.openfaas.scale.zero: false
     environment:
-      validate_hmac: false
+      validate_hmac: true
       write_debug: true
       read_debug: true
       validate_customers: true
@@ -35,7 +35,7 @@ functions:
       role: openfaas-system
       com.openfaas.scale.zero: false
     environment:
-      validate_hmac: false
+      validate_hmac: true
       read_timeout: 10s
       write_timeout: 10s
       write_debug: true