diff --git a/package.json b/package.json
index 57d04a7..cea82df 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
   "license": "Apache-2.0",
   "devDependencies": {
     "markdownlint-cli": "^0.31.1",
-    "prettier": "^2.7.1",
+    "prettier": "^2.8.3",
     "textlint": "^12.1.1",
     "textlint-filter-rule-allowlist": "^4.0.0",
     "textlint-filter-rule-comments": "^1.2.2",
diff --git a/yarn.lock b/yarn.lock
index e60d3ec..fbab4a3 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1699,10 +1699,10 @@ prelude-ls@^1.2.1:
   resolved "https://registry.yarnpkg.com/prelude-ls/-/prelude-ls-1.2.1.tgz#debc6489d7a6e6b0e7611888cec880337d316396"
   integrity sha512-vkcDPrRZo1QZLbn5RLGPpg/WmIQ65qoWWhcGKf/b5eplkkarX0m9z8ppCat4mlOqUsWpyNuYgO3VRyrYHSzX5g==
 
-prettier@^2.7.1:
-  version "2.7.1"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.7.1.tgz#e235806850d057f97bb08368a4f7d899f7760c64"
-  integrity sha512-ujppO+MkdPqoVINuDFDRLClm7D78qbDt0/NR+wp5FqEZOoTNAjPHWj17QRhu7geIHJfcNhRk1XVQmF8Bp3ye+g==
+prettier@^2.8.3:
+  version "2.8.3"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.3.tgz#ab697b1d3dd46fb4626fbe2f543afe0cc98d8632"
+  integrity sha512-tJ/oJ4amDihPoufT5sM0Z1SKEuKay8LfVAMlbbhnnkvt6BUserZylqo2PN+p9KeljLr0OHa2rXHU1T8reeoTrw==
 
 punycode@^2.1.0:
   version "2.1.1"