diff --git a/Firestore/CHANGELOG.md b/Firestore/CHANGELOG.md
index 4e5bc22d8b9..c05338877fd 100644
--- a/Firestore/CHANGELOG.md
+++ b/Firestore/CHANGELOG.md
@@ -1,4 +1,4 @@
-# Unreleased
+# 10.21.0
 - Add an error when trying to build Firestore's binary SPM distribution for
   visionOS (#12279). See Firestore's 10.12.0 release note for a supported
   workaround.