diff --git a/packages/jotai/package.json b/packages/jotai/package.json
index 160c6e3..7ec3463 100644
--- a/packages/jotai/package.json
+++ b/packages/jotai/package.json
@@ -7,6 +7,18 @@
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },
+  "exports": {
+    ".": {
+      "import": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.mjs"
+      },
+      "require": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.cjs"
+      }
+    }
+  },
   "keywords": [
     "react",
     "state",
diff --git a/packages/react-query/package.json b/packages/react-query/package.json
index 5d7a985..8404386 100644
--- a/packages/react-query/package.json
+++ b/packages/react-query/package.json
@@ -5,7 +5,19 @@
   "type": "module",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1"
+    "test": "jest --config jest.config.ts"
+  },
+  "exports": {
+    ".": {
+      "import": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.mjs"
+      },
+      "require": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.cjs"
+      }
+    }
   },
   "keywords": [
     "react",
diff --git a/packages/valtio/package.json b/packages/valtio/package.json
index 6715570..c777327 100644
--- a/packages/valtio/package.json
+++ b/packages/valtio/package.json
@@ -7,6 +7,18 @@
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },
+  "exports": {
+    ".": {
+      "import": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.mjs"
+      },
+      "require": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.cjs"
+      }
+    }
+  },
   "keywords": [
     "react",
     "state",
diff --git a/packages/zustand/package.json b/packages/zustand/package.json
index 10ff1a8..8084261 100644
--- a/packages/zustand/package.json
+++ b/packages/zustand/package.json
@@ -7,6 +7,18 @@
   "scripts": {
     "test": "jest --config jest.config.ts"
   },
+  "exports": {
+    ".": {
+      "import": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.mjs"
+      },
+      "require": {
+        "types": "./dist/index.d.ts",
+        "default": "./dist/index.cjs"
+      }
+    }
+  },
   "keywords": [
     "react",
     "state",
diff --git a/rollup.config.js b/rollup.config.js
index 1451229..ccdcb53 100644
--- a/rollup.config.js
+++ b/rollup.config.js
@@ -76,7 +76,7 @@ module.exports = (args) => {
 
   return [
     createDeclarationConfig(input, output),
-    createESMConfig(`${input}/src/index.ts`, `${output}/index.ems.js`),
+    createESMConfig(`${input}/src/index.ts`, `${output}/index.mjs`),
     createCommonJSConfig(`${input}/src/index.ts`, `${output}/index.cjs.js`),
     createUMDConfig(
       `${input}/src/index.ts`,