diff --git a/yoke/deploy.py b/yoke/deploy.py
index <HASH>..<HASH> 100644
--- a/yoke/deploy.py
+++ b/yoke/deploy.py
@@ -262,4 +262,7 @@ class Deployment(object):
     def _format_vpc_config(self):
 
         # todo(ryandub): Add VPC support
-        return {}
+        return {
+            'SecurityGroupIds': [],
+            'SubnetIds': [],
+        }
Update VpcConfig format

AWS introduced a bug to the Lambda API that resulted in error messages
if VpcConfig was passed as an empty dict. Adding the SecurityGroupIds
and SubnetIds as empty arrays should workaround this bug. See
<URL>