diff --git a/package-lock.json b/package-lock.json
index bfe6d63ae5..a20453d6f0 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,6 +9,7 @@
       "version": "1.5.0",
       "license": "Unlicense",
       "dependencies": {
+        "flatted": "^3.4.0",
         "markdownlint-cli": "0.41.0",
         "textlint": "^12.1.0",
         "textlint-rule-ja-space-between-half-and-full-width": "^2.2.0",
@@ -1124,12 +1125,18 @@
         "node": ">=4"
       }
     },
-    "node_modules/flatted": {
+    "node_modules/flat-cache/node_modules/flatted": {
       "version": "2.0.2",
       "resolved": "https://registry.npmjs.org/flatted/-/flatted-2.0.2.tgz",
       "integrity": "sha512-r5wGx7YeOwNWNlCA0wQ86zKyDLMQr+/RB8xy74M4hTphfmjlijTSSXGuH8rnvKZnfT9i+75zmd8jcKdMR4O6jA==",
       "license": "ISC"
     },
+    "node_modules/flatted": {
+      "version": "3.4.0",
+      "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.4.0.tgz",
+      "integrity": "sha512-kC6Bb+ooptOIvWj5B63EQWkF0FEnNjV2ZNkLMLZRDDduIiWeFF4iKnslwhiWxjAdbg4NzTNo6h0qLuvFrcx+Sw==",
+      "license": "ISC"
+    },
     "node_modules/for-each": {
       "version": "0.3.5",
       "resolved": "https://registry.npmjs.org/for-each/-/for-each-0.3.5.tgz",
diff --git a/package.json b/package.json
index 39591a6c64..a548d6fda4 100644
--- a/package.json
+++ b/package.json
@@ -27,10 +27,11 @@
   },
   "homepage": "https://cook.aiursoft.com",
   "dependencies": {
+    "flatted": "^3.4.0",
+    "markdownlint-cli": "0.41.0",
     "textlint": "^12.1.0",
     "textlint-rule-ja-space-between-half-and-full-width": "^2.2.0",
-    "textlint-rule-zh-half-and-full-width-bracket": "^1.1.0",
-    "markdownlint-cli":"0.41.0"
+    "textlint-rule-zh-half-and-full-width-bracket": "^1.1.0"
   },
   "devDependencies": {
     "glob": "^7.2.0"