diff --git a/package-lock.json b/package-lock.json
index b062443..f3878d1 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -11,7 +11,7 @@
       "dependencies": {
         "express": "^4.19.2",
         "js-yaml": "^4.1.0",
-        "zod-openapi": "^2.18.0"
+        "zod-openapi": "^4.1.0"
       },
       "devDependencies": {
         "@commitlint/cli": "^19.3.0",
@@ -19,8 +19,8 @@
         "@types/express": "^4.17.21",
         "@types/jest": "^29.5.12",
         "@types/js-yaml": "^4.0.9",
-        "@typescript-eslint/parser": "^7.18.0",
         "@typescript-eslint/eslint-plugin": "^8.3.0",
+        "@typescript-eslint/parser": "^7.18.0",
         "eslint": "^8.57.0",
         "eslint-config-prettier": "^9.1.0",
         "husky": "^9.0.11",
@@ -9011,11 +9011,11 @@
       }
     },
     "node_modules/zod-openapi": {
-      "version": "2.18.0",
-      "resolved": "https://registry.npmjs.org/zod-openapi/-/zod-openapi-2.18.0.tgz",
-      "integrity": "sha512-+NSd+hG8JFzsmrfYSmbCp4TFCGq9YH6R/3qmD6WnF1ywomgpwxWv6lDg1yrXg0z80p6DPQrsII+V02vWaMHG7A==",
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/zod-openapi/-/zod-openapi-4.1.0.tgz",
+      "integrity": "sha512-bRCwRYhEO9CmFLyKgJX8h6j1dRtRiwOe+TLzMVPyV0pRW5vRIgb1rLgIGcuRZ5z3MmSVrZqbv3yva4IJrtZK4g==",
       "engines": {
-        "node": ">=16.11"
+        "node": ">=18"
       },
       "peerDependencies": {
         "zod": "^3.21.4"
diff --git a/package.json b/package.json
index ad9d0cb..da3d436 100644
--- a/package.json
+++ b/package.json
@@ -60,7 +60,7 @@
   "dependencies": {
     "express": "^4.19.2",
     "js-yaml": "^4.1.0",
-    "zod-openapi": "^2.18.0"
+    "zod-openapi": "^4.1.0"
   },
   "publishConfig": {
     "access": "public",