diff --git a/lib/js/package-lock.json b/lib/js/package-lock.json
index 0d9de12..8802661 100644
--- a/lib/js/package-lock.json
+++ b/lib/js/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "thrift",
-  "version": "0.20.0",
+  "version": "0.21.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
diff --git a/lib/js/package.json b/lib/js/package.json
index 8543b25..d9ab5a6 100644
--- a/lib/js/package.json
+++ b/lib/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "thrift",
-  "version": "0.20.0",
+  "version": "0.21.0",
   "description": "Thrift is a software framework for scalable cross-language services development.",
   "main": "./src/thrift",
   "author": {
diff --git a/lib/js/src/thrift.js b/lib/js/src/thrift.js
index 7dbb560..de5ca19 100644
--- a/lib/js/src/thrift.js
+++ b/lib/js/src/thrift.js
@@ -46,7 +46,7 @@
      * @const {string} Version
      * @memberof Thrift
      */
-    Version: '0.20.0',
+    Version: '0.21.0',
 
     /**
      * Thrift IDL type string to Id mapping.