diff --git a/package.json b/package.json
index 80037b8..5778e7b 100644
--- a/package.json
+++ b/package.json
@@ -21,8 +21,9 @@
     "postinstall": "husky install",
     "prepack": "yarn clean && yarn build",
     "prettier": "prettier --check . --cache",
-    "test": "yarn lint && yarn tsc && yarn prettier && yarn unit",
+    "test": "yarn lint && yarn tsc && yarn tsc:node16 && yarn prettier && yarn unit",
     "tsc": "tsc --noEmit",
+    "tsc:node16": "tsc --project tsconfig.node16.json --noEmit",
     "unit": "vitest"
   },
   "keywords": [
diff --git a/src/index.ts b/src/index.ts
index e080c1d..aa8a049 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,6 +1,6 @@
-import AsyncButton from './AsyncButton.js';
+import AsyncButton from './AsyncButton';
 
-export type { AsyncButtonProps } from './AsyncButton.js';
+export type { AsyncButtonProps } from './AsyncButton';
 
 export { AsyncButton };
 
diff --git a/tsconfig.node16.json b/tsconfig.node16.json
new file mode 100644
index 0000000..60565a0
--- /dev/null
+++ b/tsconfig.node16.json
@@ -0,0 +1,8 @@
+{
+  "extends": "./tsconfig.json",
+  "compilerOptions": {
+    "moduleResolution": "node16",
+    "skipLibCheck": true
+  },
+  "exclude": ["src/**/*.spec.ts", "src/**/*.spec.tsx"]
+}