diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2eb61b0634..112e37c37a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -17,6 +17,9 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 -->
 
 ## [Unreleased]
+
+## [4.3.0] - 2019-03-04
+
 ### Added
 - Fix [#1383](https://github.com/Microsoft/BotFramework-WebChat/issues/1383). Added options to hide upload button, by [@compulim](https://github.com/compulim) in PR [#1491](https://github.com/Microsoft/BotFramework-WebChat/pull/1491)
 - Added support of avatar image, thru `styleOptions.botAvatarImage` and `styleOptions.userAvatarImage`, in PR [#1486](https://github.com/Microsoft/BotFramework-WebChat/pull/1486)
diff --git a/package-lock.json b/package-lock.json
index 1c836b2a61..ec6b32169d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "botframework-webchat-root",
-  "version": "4.2.1-0",
+  "version": "4.3.1-0",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index c1ac16d84e..f45493ff67 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "botframework-webchat-root",
-  "version": "4.2.1-0",
+  "version": "4.3.1-0",
   "private": true,
   "files": [
     "lib/**/*"