diff --git a/CHANGELOG.md b/CHANGELOG.md
index 414a760..361d921 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## docx-wasm@0.0.278-rc2 (19. May, 2023)
+
+- Support `<sym />`
+
 ## docx-wasm@0.0.278-rc1 (11. Apr, 2023)
 
 - Fixed a bug, style.link is not output.
diff --git a/docx-wasm/package.json b/docx-wasm/package.json
index dee9092..9b7b57b 100644
--- a/docx-wasm/package.json
+++ b/docx-wasm/package.json
@@ -1,6 +1,6 @@
 {
   "name": "docx-wasm",
-  "version": "0.0.278-rc1",
+  "version": "0.0.278-rc2",
   "main": "dist/node/index.js",
   "browser": "dist/web/index.js",
   "author": "bokuweb <bokuweb12@gmail.com>",