diff --git a/firestore-send-email/CHANGELOG.md b/firestore-send-email/CHANGELOG.md
index d70db6e19..b68182c0f 100644
--- a/firestore-send-email/CHANGELOG.md
+++ b/firestore-send-email/CHANGELOG.md
@@ -1,8 +1,8 @@
 ## Version 0.2.4
 
-fix: add missing 'headers' field to the mailOptions interface
+fix: add missing 'headers' field to the mailOptions interface (contributed by @Nushio)
 
-docs: update documentation to include 'headers' field
+docs: update documentation to include 'headers' field (contributed by @Nushio)
 
 fix: TTL expire type "week" fixed (#2455)