diff --git a/CHANGELOG.md b/CHANGELOG.md
index ed49e74c22..4dbc7de00a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,8 +4,8 @@ x.x.x Release notes (yyyy-MM-dd)
 * None.
 
 ### Fixed
-* <How to hit and notice issue? what was the impact?> ([#????](https://github.com/realm/realm-js/issues/????), since v?.?.?)
 * Fixed a bug where elements in the `User#identities` array would have a `userId` which was actually an `id` of the identity. ([#3481](https://github.com/realm/realm-js/pull/3481), since v10.0.0-beta.13)
+* Fixed a bug which could lead to a `BadChangeset Error` (`ProtocolErrorCode=212`).
 
 ### Compatibility
 * MongoDB Realm Cloud.
@@ -13,7 +13,7 @@ x.x.x Release notes (yyyy-MM-dd)
 * File format: generates Realms with format v20 (reads and upgrades file format v5 or later for non-synced Realm, upgrades file format v10 for synced Realms).
 
 ### Internal
-* None.
+* Upgraded Realm Sync from v10.1.5 to v10.1.6.
 
 10.1.2 Release notes (2020-12-16)
 =============================================================
diff --git a/dependencies.list b/dependencies.list
index b7440419fb..c15a904c14 100644
--- a/dependencies.list
+++ b/dependencies.list
@@ -1,5 +1,5 @@
 PACKAGE_NAME=realm-js
 VERSION=10.1.2
 REALM_CORE_VERSION=10.1.4
-REALM_SYNC_VERSION=10.1.5
+REALM_SYNC_VERSION=10.1.6
 NAPI_VERSION=4