bump version to 0.0.21 for invoke poller fix
diff --git a/client/package.json b/client/package.json
index f70da57..52120eb 100644
--- a/client/package.json
+++ b/client/package.json
@@ -1,6 +1,6 @@
 {
   "name": "openwhisk-debugger",
-  "version": "0.0.20",
+  "version": "0.0.21",
   "description": "A debugger for OpenWhisk",
   "repository": {
     "type": "git",