diff --git a/README.md b/README.md
index 7f628be..e139c71 100644
--- a/README.md
+++ b/README.md
@@ -189,7 +189,7 @@ This program is free software under [MIT][mit-url] License.
 See the file LICENSE in this distribution for more details.
 
 [repo-url]: https://github.com/sttk/copy-props/
-[npm-img]: https://img.shields.io/badge/npm-v1.5.2-blue.svg
+[npm-img]: https://img.shields.io/badge/npm-v1.6.0-blue.svg
 [npm-url]: https://www.npmjs.org/package/copy-props/
 [mit-img]: https://img.shields.io/badge/license-MIT-green.svg
 [mit-url]: https://opensource.org/licenses.MIT
diff --git a/package.json b/package.json
index 9e1751e..143e7e9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "copy-props",
-  "version": "1.5.2",
+  "version": "1.6.0",
   "description": "Copy properties deeply between two objects.",
   "main": "index.js",
   "files": [