diff --git a/CHANGELOG.md b/CHANGELOG.md
index e28c0677..554efc68 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,10 @@ X.Y.Z Release notes
 * Avoid closing then reopening a sync session when using `Realm.open` (#1391).
 * Respect custom Realm paths when using `Realm.open` (#1392 and #1393).
 
+### Internal
+* Upgrading to Realm Sync 2.0.0-rc28.
+* Upgrading to Realm Object Server 2.0.0-rc.4.
+
 2.0.0-rc19 Release notes (2017-10-7)
 =============================================================
 ### Breaking changes
diff --git a/dependencies.list b/dependencies.list
index 93903a88..70b53cc0 100644
--- a/dependencies.list
+++ b/dependencies.list
@@ -1,5 +1,5 @@
 PACKAGE_NAME=realm-js
 VERSION=2.0.0-rc19
 REALM_CORE_VERSION=4.0.1
-REALM_SYNC_VERSION=2.0.0-rc27
-REALM_OBJECT_SERVER_VERSION=2.0.0-alpha.44
+REALM_SYNC_VERSION=2.0.0-rc28
+REALM_OBJECT_SERVER_VERSION=2.0.0-rc.4