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.