diff --git a/apps/OpenSignServer/package-lock.json b/apps/OpenSignServer/package-lock.json
index bebf20cc9..72be9fc4c 100644
--- a/apps/OpenSignServer/package-lock.json
+++ b/apps/OpenSignServer/package-lock.json
@@ -46,7 +46,7 @@
         "mongodb-runner": "^5.7.1",
         "nodemon": "^3.1.7",
         "nyc": "^17.1.0",
-        "prettier": "^3.3.3"
+        "prettier": "^3.4.2"
       },
       "engines": {
         "node": "18 || 20 || 22"
@@ -9924,9 +9924,9 @@
       }
     },
     "node_modules/prettier": {
-      "version": "3.3.3",
-      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.3.3.tgz",
-      "integrity": "sha512-i2tDNA0O5IrMO757lfrdQZCc2jPNDVntV0m/+4whiDfWaTKfMNgR7Qz0NAeGz/nRqF4m5/6CLzbP4/liHt12Ew==",
+      "version": "3.4.2",
+      "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.4.2.tgz",
+      "integrity": "sha512-e9MewbtFo+Fevyuxn/4rrcDAaq0IYxPGLvObpQjiZBMAzB9IGmzlnG9RZy3FFas+eBMu2vA0CszMeduow5dIuQ==",
       "dev": true,
       "bin": {
         "prettier": "bin/prettier.cjs"
diff --git a/apps/OpenSignServer/package.json b/apps/OpenSignServer/package.json
index 885e1fe3b..bcbe62c29 100644
--- a/apps/OpenSignServer/package.json
+++ b/apps/OpenSignServer/package.json
@@ -56,7 +56,7 @@
     "mongodb-runner": "^5.7.1",
     "nodemon": "^3.1.7",
     "nyc": "^17.1.0",
-    "prettier": "^3.3.3"
+    "prettier": "^3.4.2"
   },
   "overrides": {
     "ws": "$ws",