diff --git a/package-lock.json b/package-lock.json
index 8aabca4..26a66f3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,7 +13,7 @@
         "@hyperlight/js-host-api": "file:deps/js-host-api",
         "boxen": "^8.0.1",
         "hyperlight-analysis": "file:src/code-validator/guest",
-        "zod": "^3.25.0"
+        "zod": "^4.3.6"
       },
       "bin": {
         "hyperagent": "dist/bin/hyperagent"
@@ -750,15 +750,6 @@
         "node": ">=14.0.0"
       }
     },
-    "node_modules/@github/copilot-sdk/node_modules/zod": {
-      "version": "4.3.6",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-4.3.6.tgz",
-      "integrity": "sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==",
-      "license": "MIT",
-      "funding": {
-        "url": "https://github.com/sponsors/colinhacks"
-      }
-    },
     "node_modules/@github/copilot-win32-arm64": {
       "version": "1.0.3",
       "resolved": "https://registry.npmjs.org/@github/copilot-win32-arm64/-/copilot-win32-arm64-1.0.3.tgz",
@@ -4729,9 +4720,9 @@
       }
     },
     "node_modules/zod": {
-      "version": "3.25.76",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
-      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "version": "4.3.6",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.3.6.tgz",
+      "integrity": "sha512-rftlrkhHZOcjDwkGlnUtZZkvaPHCsDATp4pGpuOOMDaTdDDXF91wuVDJoWoPsKX/3YPQ5fHuF3STjcYyKr+Qhg==",
       "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
diff --git a/package.json b/package.json
index 8527e7b..6e6678a 100644
--- a/package.json
+++ b/package.json
@@ -34,7 +34,7 @@
     "@hyperlight/js-host-api": "file:deps/js-host-api",
     "boxen": "^8.0.1",
     "hyperlight-analysis": "file:src/code-validator/guest",
-    "zod": "^3.25.0"
+    "zod": "^4.3.6"
   },
   "devDependencies": {
     "@types/node": "^25.3.3",