diff --git a/CHANGELOG.md b/CHANGELOG.md
index d9381cfc..acd35f3d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,7 @@
 #### Fixed
 
 - Expand template variable in Array of Any [#651](https://github.com/yonaskolb/XcodeGen/pull/651) @kateinoigakukun
+- Significantly improve performance when running with a large number files. [#658](https://github.com/yonaskolb/XcodeGen/pull/658) @kateinoigakukun
 
 ## 2.7.0