diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4361e8e9b..939393558 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@ All notable changes to this project will be documented in this file.
 - remove GCS to BQ with Dataflow example, replace by GCS to BQ with least privileges
 - the `net-vpc` and `project` modules now use the beta provider for shared VPC-related resources
 - new `iot-core` module
+- **incompatible change** the variables for host and service Shared VPCs have changed in the project module
+- **incompatible change** the variable for service identities IAM has changed in the project factory
 
 ## [13.0.0] - 2022-01-27