diff --git a/package-lock.json b/package-lock.json
index 311a631..131af52 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.4.3",
       "license": "MIT",
       "dependencies": {
-        "@kobalab/majiang-core": "^0.2.0"
+        "@kobalab/majiang-core": "^0.2.1"
       },
       "devDependencies": {
         "mocha": "^9.2.0",
@@ -517,9 +517,9 @@
       }
     },
     "node_modules/@kobalab/majiang-core": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/@kobalab/majiang-core/-/majiang-core-0.2.0.tgz",
-      "integrity": "sha512-aakzOOdngjo7JaP8O4KU/tKY3G+eqzjUZRi9KJADUVHhJLYeobVXERkLwOhT1Fv0f2BlclAfKeMWLKFhF0U9kQ=="
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/@kobalab/majiang-core/-/majiang-core-0.2.1.tgz",
+      "integrity": "sha512-7ZbZeGqxIatzYSAlJjrwjUmn00X7OeGvF3sFSt956z45i6gOsBfUxLsZapciUiX5qtqnoRcnjIMKez4C6B1USQ=="
     },
     "node_modules/@ungap/promise-all-settled": {
       "version": "1.1.2",
@@ -2844,9 +2844,9 @@
       "dev": true
     },
     "@kobalab/majiang-core": {
-      "version": "0.2.0",
-      "resolved": "https://registry.npmjs.org/@kobalab/majiang-core/-/majiang-core-0.2.0.tgz",
-      "integrity": "sha512-aakzOOdngjo7JaP8O4KU/tKY3G+eqzjUZRi9KJADUVHhJLYeobVXERkLwOhT1Fv0f2BlclAfKeMWLKFhF0U9kQ=="
+      "version": "0.2.1",
+      "resolved": "https://registry.npmjs.org/@kobalab/majiang-core/-/majiang-core-0.2.1.tgz",
+      "integrity": "sha512-7ZbZeGqxIatzYSAlJjrwjUmn00X7OeGvF3sFSt956z45i6gOsBfUxLsZapciUiX5qtqnoRcnjIMKez4C6B1USQ=="
     },
     "@ungap/promise-all-settled": {
       "version": "1.1.2",
diff --git a/package.json b/package.json
index 3d580e1..c30e1e2 100644
--- a/package.json
+++ b/package.json
@@ -31,6 +31,6 @@
     "yargs": "^17.2.1"
   },
   "dependencies": {
-    "@kobalab/majiang-core": "^0.2.0"
+    "@kobalab/majiang-core": "^0.2.1"
   }
 }