diff --git a/mmv1/third_party/terraform/website/docs/guides/version_5_upgrade.html.markdown b/mmv1/third_party/terraform/website/docs/guides/version_5_upgrade.html.markdown
index 57c652a91a24..7ed72ff69300 100644
--- a/mmv1/third_party/terraform/website/docs/guides/version_5_upgrade.html.markdown
+++ b/mmv1/third_party/terraform/website/docs/guides/version_5_upgrade.html.markdown
@@ -317,3 +317,11 @@ Deprecated in favor of field `pem_certificate_chain`. It is now removed.
 ### `gameservices` is now removed
 
 This change involved the following resources: `google_game_services_game_server_cluster`, `google_game_services_game_server_deployment`, `google_game_services_game_server_config`, `google_game_services_realm` and `google_game_services_game_server_deployment_rollout`.
+
+## Resource: `google_sql_database`
+
+### `database_flags` is now a set
+
+Previously, `database_flags` was a list, making it order-dependent. It is now a set.
+
+If you were relying on accessing an individual flag by index (for example, `google_sql_database_instance.instance.settings.0.database_flags.0.name`), then that will now need to by hash (for example, `google_sql_database_instance.instance.settings.0.database_flags.<some-hash>.name`).