diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9161b301..448c7db6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,9 @@ Change Log
 All notable changes to this project will be documented in this file. This
 project adheres to [Semantic Versioning](http://semver.org/).
 
+# 2.1.27
+- Update the version of rustc-ap-syntax
+
 # 2.1.26
 - Update the version of rustc-ap-syntax