diff --git a/specification/resources/databases/databases_update_firewall_rules.yml b/specification/resources/databases/databases_update_firewall_rules.yml
index ea49be26..78d6361b 100644
--- a/specification/resources/databases/databases_update_firewall_rules.yml
+++ b/specification/resources/databases/databases_update_firewall_rules.yml
@@ -9,12 +9,14 @@ description: >-
   able to open connections to the database. You may limit connections to
   specific Droplets, Kubernetes clusters, or IP addresses. When a tag is
   provided, any Droplet or Kubernetes node with that tag applied to it will
-  have access. The firewall is limited to 100 rules (or trusted sources). When
-  possible, we recommend
+  have access. The firewall is limited to 100 rules (or trusted sources). You
+  cannot add IPv6 addresses as trusted sources. For additional limits, see your
+  database engine's limits page.
+  When possible, we recommend
   [placing your databases into a VPC network](https://docs.digitalocean.com/products/networking/vpc/)
   to limit access to them instead of using a firewall.
 
-  A successful
+  A successful request returns a 204 status code with no content.
 
 tags:
   - Databases