diff --git a/CHANGELOG.md b/CHANGELOG.md
index 78286ab..9204499 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Added
 - Support subqery _metadata query(#4)
 - GraphiQL control flag - `playground`
+- Health check API `/.well-known/apollo/server-health`
 
 ### Fixed
 - Bigint query type not match