diff --git a/spec/input/spec.yml b/spec/input/spec.yml
index 31cbd7645..33d79771f 100644
--- a/spec/input/spec.yml
+++ b/spec/input/spec.yml
@@ -4,7 +4,7 @@
 ## Describes the folders and files that make up a package.
 ##
 spec:
-  additionalContents: true
+  additionalContents: false
   totalContentsLimit: 65535
   totalSizeLimit: 50MB
   sizeLimit: 30MB
diff --git a/spec/integration/spec.yml b/spec/integration/spec.yml
index eb46859e2..98cef5633 100644
--- a/spec/integration/spec.yml
+++ b/spec/integration/spec.yml
@@ -4,7 +4,7 @@
 ## Describes the folders and files that make up a package.
 ##
 spec:
-  additionalContents: true
+  additionalContents: false
   totalContentsLimit: 65535
   totalSizeLimit: 250MB
   sizeLimit: 150MB