diff --git a/package-lock.json b/package-lock.json
index 372974a..8ff58f7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -30,7 +30,7 @@
         "openapi-fetch": "^0.14.0",
         "ts-levenshtein": "^1.0.7",
         "yargs-parser": "^21.1.1",
-        "zod": "^3.25.76"
+        "zod": "^4.1.12"
       },
       "engines": {
         "node": "^20.19.0 || ^22.12.0 || >= 23.0.0"
@@ -998,6 +998,24 @@
         "node": ">=16.20.0"
       }
     },
+    "node_modules/@modelcontextprotocol/sdk/node_modules/zod": {
+      "version": "3.25.76",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
+      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "license": "MIT",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
+    "node_modules/@modelcontextprotocol/sdk/node_modules/zod-to-json-schema": {
+      "version": "3.24.6",
+      "resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.24.6.tgz",
+      "integrity": "sha512-h/z3PKvcTcTetyjl1fkj79MHNEjm+HpD6NXheWjzOekY7kV+lwDYnHw+ivHkijnCSMz1yJaWBD9vu/Fcmk+vEg==",
+      "license": "ISC",
+      "peerDependencies": {
+        "zod": "^3.24.1"
+      }
+    },
     "node_modules/@mongodb-js/device-id": {
       "version": "0.3.1",
       "resolved": "https://registry.npmjs.org/@mongodb-js/device-id/-/device-id-0.3.1.tgz",
@@ -7687,22 +7705,13 @@
       }
     },
     "node_modules/zod": {
-      "version": "3.25.76",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
-      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "version": "4.1.12",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.1.12.tgz",
+      "integrity": "sha512-JInaHOamG8pt5+Ey8kGmdcAcg3OL9reK8ltczgHTAwNhMys/6ThXHityHxVV2p3fkw/c+MAvBHFVYHFZDmjMCQ==",
       "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
       }
-    },
-    "node_modules/zod-to-json-schema": {
-      "version": "3.24.6",
-      "resolved": "https://registry.npmjs.org/zod-to-json-schema/-/zod-to-json-schema-3.24.6.tgz",
-      "integrity": "sha512-h/z3PKvcTcTetyjl1fkj79MHNEjm+HpD6NXheWjzOekY7kV+lwDYnHw+ivHkijnCSMz1yJaWBD9vu/Fcmk+vEg==",
-      "license": "ISC",
-      "peerDependencies": {
-        "zod": "^3.24.1"
-      }
     }
   }
 }
diff --git a/package.json b/package.json
index c353b08..20d8228 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "openapi-fetch": "^0.14.0",
     "ts-levenshtein": "^1.0.7",
     "yargs-parser": "^21.1.1",
-    "zod": "^3.25.76"
+    "zod": "^4.1.12"
   },
   "optionalDependencies": {
     "kerberos": "^2.2.2"