diff --git a/package.json b/package.json
index 5c865d7..e6da2ba 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ts-fsrs",
-  "version": "2.1.0",
+  "version": "2.1.1",
   "description": "ts-fsrs is a TypeScript package used to implement the Free Spaced Repetition Scheduler (FSRS) algorithm. It helps developers apply FSRS to their flashcard applications, thereby improving the user learning experience.",
   "main": "dist/index.js",
   "types": "dist/index.d.ts",
@@ -39,7 +39,7 @@
   "author": "ishiko",
   "license": "MIT",
   "files": [
-    "lib/**/*",
+    "dist/**/*",
     "README.md",
     "LICENSE"
   ],