diff --git a/website/docs/version_2_upgrade.html.markdown b/website/docs/version_2_upgrade.html.markdown
index dc8adcd4..2653efd7 100644
--- a/website/docs/version_2_upgrade.html.markdown
+++ b/website/docs/version_2_upgrade.html.markdown
@@ -251,6 +251,29 @@ resource "google_bigtable_instance" "instance" {
`cluster.zone` is now required, even if the provider block has a zone set.
+### `cluster_family` has a diff
+
+If you see
+
+```
+-/+ google_bigtable_table.my_table (new resource required)
+ id: "foo" => (forces new resource)
+ column_family.#: "1" => "0" (forces new resource)
+ column_family.123456789.family: "my-family" => ""
+ instance_name: "bar" => "bar"
+ name: "foo" => "foo"
+ project: "my-project" =>
+```
+
+Add an appropriate `column_family` block to your config, eg:
+
+```diff
++ column_family {
++ family = "my-family"
++ }
+```
+
+
## Resource: `google_binary_authorization_attestor`
### binary authorization resources have been removed from the GA provider