diff --git a/package.json b/package.json
index 7d2e1a9..05a1d2f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "payjp",
-  "version": "2.2.1",
+  "version": "2.2.2",
   "description": "PAY.JP node.js bindings",
   "main": "built/index.js",
   "types": "built/index.d.ts",