diff --git a/packages/casbin/package.json b/packages/casbin/package.json
index 6d0be5f2..c1267b38 100644
--- a/packages/casbin/package.json
+++ b/packages/casbin/package.json
@@ -3,9 +3,9 @@
   "version": "1.0.1",
   "description": "Casbin middleware for Hono",
   "type": "module",
-  "main": "dist/cjs/index.js",
-  "module": "dist/esm/index.js",
-  "types": "dist/esm/index.d.ts",
+  "main": "dist/index.cjs",
+  "module": "dist/index.js",
+  "types": "dist/index.d.ts",
   "exports": {
     ".": {
       "import": {
@@ -16,6 +16,16 @@
         "types": "./dist/index.d.cts",
         "default": "./dist/index.cjs"
       }
+    },
+    "./helper": {
+      "import": {
+        "types": "./dist/helper/index.d.ts",
+        "default": "./dist/helper/index.js"
+      },
+      "require": {
+        "types": "./dist/helper/index.d.cts",
+        "default": "./dist/helper/index.cjs"
+      }
     }
   },
   "files": [
@@ -23,7 +33,7 @@
   ],
   "scripts": {
     "test": "vitest --run",
-    "build": "tsup ./src/index.ts --format esm,cjs --dts",
+    "build": "tsup ./src/index.ts ./src/helper/index.ts --format esm,cjs --dts",
     "publint": "publint",
     "release": "yarn build && yarn test && yarn publint && yarn publish"
   },