diff --git a/js/package.json b/js/package.json
index b90516f0..f9849c1a 100644
--- a/js/package.json
+++ b/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@confio/ics23",
-  "version": "0.6.5",
+  "version": "0.6.6",
   "description": "Merkle proof verification library - implements Cosmos ICS23 Spec",
   "main": "build/index.js",
   "types": "build/index.d.ts",