diff --git a/package-lock.json b/package-lock.json
index 6e3163c..9de486a 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -9,7 +9,7 @@
       "version": "1.1.3",
       "license": "MIT",
       "devDependencies": {
-        "prettier": "3.9.8",
+        "prettier": "3.9.9",
         "typescript": "^7.0.2"
       }
     },
@@ -354,9 +354,9 @@
       }
     },
     "node_modules/prettier": {
-      "version": "3.9.8",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.9.8.tgz",
-      "integrity": "sha512-WRFq3Wn3WId7LLROfMLdH7xaFr2jR62wU8nLO6rQUOLOxNZUviyJQs1M0iIhLexSFy+L+w0ch66wtoO2jRjG0A==",
+      "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 8ba500c..28570c8 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
   },
   "homepage": "https://github.com/swiing/Bit-TypedArray#readme",
   "devDependencies": {
-    "prettier": "3.9.8",
+    "prettier": "3.9.9",
     "typescript": "^7.0.2"
   },
   "files": [