diff --git a/package.json b/package.json
index 308cc000..5219d691 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "3dmol",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "description": "JavaScript/TypeScript molecular visualization library",
   "repository": {
     "type": "git",