diff --git a/airbyte-connector-builder-server/README.md b/airbyte-connector-builder-server/README.md
index ab45127bde72..eb6d5f83bcec 100644
--- a/airbyte-connector-builder-server/README.md
+++ b/airbyte-connector-builder-server/README.md
@@ -17,6 +17,11 @@ uvicorn connector_builder.entrypoint:app --host 0.0.0.0 --port 8080
 
 The server is now reachable on localhost:8080
 
+## Changing the used CDK version
+
+Update the `airbyte-connector-builder-server/CDK_VERSION` file to point to the target version.
+This will make sure both this project and the webapp depending on it will stay in sync.
+
 ### OpenAPI generation
 
 Run it via Gradle by running this from the Airbyte project root: