diff --git a/package-lock.json b/package-lock.json
index ba77442..9dd2154 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,7 +18,7 @@
       "devDependencies": {
         "@types/node": "^25.3.3",
         "eslint": "^10.0.2",
-        "prettier": "^3.8.1",
+        "prettier": "^3.9.9",
         "typescript": "^5.9.3",
         "vitest": "^4.0.18"
       },
@@ -2687,9 +2687,9 @@
       }
     },
     "node_modules/prettier": {
-      "version": "3.8.1",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.8.1.tgz",
-      "integrity": "sha512-UOnG6LftzbdaHZcKoPFtOcCKztrQ57WkHDeRD9t/PTQtmT0NHSeWWepj6pS0z/N7+08BHFDQVUrfmfMRcZwbMg==",
+      "version": "3.9.9",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.9.9.tgz",
+      "integrity": "sha512-Z/CJHIkdujO/OtN7nXUii0Rf3VT5SRuhjBA82Xvu2XhBUgX3nhP67T0LHceBdQLex7OOFGTox+Q5Yg8Jk2Qivg==",
       "dev": true,
       "license": "MIT",
       "bin": {
diff --git a/package.json b/package.json
index 9e24c50..a3fe2dd 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,7 @@
   "devDependencies": {
     "@types/node": "^25.3.3",
     "eslint": "^10.0.2",
-    "prettier": "^3.8.1",
+    "prettier": "^3.9.9",
     "typescript": "^5.9.3",
     "vitest": "^4.0.18"
   }