diff --git a/.changeset/calm-taxis-smell.md b/.changeset/calm-taxis-smell.md
new file mode 100644
index 000000000..19919d8d7
--- /dev/null
+++ b/.changeset/calm-taxis-smell.md
@@ -0,0 +1,5 @@
+---
+'@hono/clerk-auth': patch
+---
+
+fix: export esm
diff --git a/packages/clerk-auth/package.json b/packages/clerk-auth/package.json
index 69a52add6..9f3af27b6 100644
--- a/packages/clerk-auth/package.json
+++ b/packages/clerk-auth/package.json
@@ -2,17 +2,31 @@
   "name": "@hono/clerk-auth",
   "version": "1.0.1",
   "description": "A third-party Clerk auth middleware for Hono",
-  "main": "dist/index.js",
+  "type": "module",
+  "main": "dist/index.cjs",
+  "module": "dist/index.js",
   "types": "dist/index.d.ts",
   "files": [
     "dist"
   ],
   "scripts": {
     "test": "jest",
-    "build": "rimraf dist && tsc",
+    "build": "tsup ./src/index.ts --format esm,cjs --dts",
     "prerelease": "yarn build && yarn test",
     "release": "yarn publish"
   },
+  "exports": {
+    ".": {
+      "import": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.js"
+      },
+      "require": {
+        "types": "./dist/index.d.cts",
+        "default": "./dist/index.cjs"
+      }
+    }
+  },
   "license": "MIT",
   "publishConfig": {
     "registry": "https://registry.npmjs.org",
@@ -34,6 +48,6 @@
     "jest": "^29.7.0",
     "node-fetch-native": "^1.4.0",
     "react": "^18.2.0",
-    "rimraf": "^5.0.5"
+    "tsup": "^8.0.1"
   }
 }
diff --git a/yarn.lock b/yarn.lock
index f51503e43..466ecfc94 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1824,7 +1824,7 @@ __metadata:
     jest: "npm:^29.7.0"
     node-fetch-native: "npm:^1.4.0"
     react: "npm:^18.2.0"
-    rimraf: "npm:^5.0.5"
+    tsup: "npm:^8.0.1"
   peerDependencies:
     "@clerk/backend": 0.30.*
     hono: ">=3.*"