diff --git a/CHANGELOG.md b/CHANGELOG.md
index a2cd56fdf..1d30cc5ff 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,16 @@ and Yorkie JS SDK adheres to [Semantic Versioning](https://semver.org/spec/v2.0.
 
 ## [Unreleased]
 
+## [0.5.6] - 2024-11-22
+
+### Added
+
+- Add keepalive option in client.deactivate by @JOOHOJANG in https://github.com/yorkie-team/yorkie-js-sdk/pull/928
+
+### Fixed
+
+- Improve GC for deactivated client's nodes by @JOOHOJANG in https://github.com/yorkie-team/yorkie-js-sdk/pull/926
+
 ## [0.5.5] - 2024-11-07
 
 ### Added
diff --git a/packages/sdk/package.json b/packages/sdk/package.json
index e4b0150a2..66c060426 100644
--- a/packages/sdk/package.json
+++ b/packages/sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "yorkie-js-sdk",
-  "version": "0.5.5",
+  "version": "0.5.6",
   "description": "Yorkie JS SDK",
   "main": "./src/yorkie.ts",
   "publishConfig": {