diff --git a/ramls/acq-models b/ramls/acq-models
index c1f93170..42b4c144 160000
--- a/ramls/acq-models
+++ b/ramls/acq-models
@@ -1 +1 @@
-Subproject commit c1f931704fc6d2dedfc671e308b27f56499750a7
+Subproject commit 42b4c144f867f9ac0b229dc583838389baae83a8
diff --git a/ramls/invoice.raml b/ramls/invoice.raml
index 9c526bcb..2fae17ab 100644
--- a/ramls/invoice.raml
+++ b/ramls/invoice.raml
@@ -87,6 +87,9 @@ resourceTypes:
           is: [validate]
           body:
             application/octet-stream:
+              example:
+                strict: false
+                value: !include acq-models/mod-invoice-storage/examples/document.sample
           responses:
             201:
               description: "Returns a newly created item, with server-controlled fields like 'id' populated"