diff --git a/CHANGELOG.md b/CHANGELOG.md
index bc33b34..9a93f8d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## 2024-11-23 [v1.2403.1]
+
+* Add missing main entry point to package.json
+
 ## 2024-11-17 [v1.2403.0]
 
 * Additionally includes data valid from 2024-12-09, removes data valid before 2024-09-09
diff --git a/package-lock.json b/package-lock.json
index 94dabcf..e7c417e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "ibantools-germany",
-  "version": "1.2403.0",
+  "version": "1.2403.1",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "ibantools-germany",
-      "version": "1.2403.0",
+      "version": "1.2403.1",
       "license": "AGPL",
       "devDependencies": {
         "@eslint/eslintrc": "^3.2.0",
diff --git a/package.json b/package.json
index ee074b0..622492d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ibantools-germany",
-  "version": "1.2403.0",
+  "version": "1.2403.1",
   "description": "IBAN Validator and Generator for German Bank Accounts",
   "author": "Markus Baumer <markus@baumer.dev>",
   "repository": {
@@ -25,6 +25,7 @@
     "pruefzifferberechnungsmethode"
   ],
   "type": "commonjs",
+  "main": "./dist/cjs/main.js",
   "exports": {
     ".": {
       "require": {