diff --git a/package-lock.json b/package-lock.json
index 5daed09..6098105 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "@nx-js/observer-util",
-  "version": "4.1.3",
+  "version": "4.2.1",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
diff --git a/package.json b/package.json
index 69faf93..dc15e87 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@nx-js/observer-util",
-  "version": "4.2.0",
+  "version": "4.2.1",
   "description": "Simple transparent reactivity with 100% language coverage. Made with ES6 Proxies.",
   "main": "dist/cjs.es5.js",
   "module": "dist/es.es5.js",