diff --git a/package-lock.json b/package-lock.json
index f75341f5d1..ebef926ff7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -83,7 +83,7 @@
         "vite": "^6.3.6",
         "vitest": "^3.0.4",
         "xstate": "^5.20.1",
-        "zod": "^3.25.76"
+        "zod": "^4.0.0"
       }
     },
     "node_modules/@ark/schema": {
@@ -10968,6 +10968,17 @@
       "license": "MIT",
       "optional": true
     },
+    "node_modules/sveltekit-superforms/node_modules/zod": {
+      "version": "3.25.76",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
+      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "dev": true,
+      "license": "MIT",
+      "optional": true,
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "node_modules/svelvet": {
       "version": "11.0.5",
       "resolved": "https://registry.npmjs.org/svelvet/-/svelvet-11.0.5.tgz",
@@ -12076,9 +12087,9 @@
       "license": "MIT"
     },
     "node_modules/zod": {
-      "version": "3.25.76",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
-      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "version": "4.6.5",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.6.5.tgz",
+      "integrity": "sha512-v5l/aFXZQeai4awLbOpSoHecE9UiMrnfx75tEXLjNonXVARxQ5mOeipTjROUchszUNCqnE+hqAMujRsRHsut2Q==",
       "dev": true,
       "license": "MIT",
       "funding": {
diff --git a/package.json b/package.json
index b5ab057c81..4c29b8b89c 100644
--- a/package.json
+++ b/package.json
@@ -94,7 +94,7 @@
     "vite": "^6.3.6",
     "vitest": "^3.0.4",
     "xstate": "^5.20.1",
-    "zod": "^3.25.76"
+    "zod": "^4.0.0"
   },
   "dependencies": {
     "@grpc/grpc-js": "^1.13.4",