diff --git a/package.json b/package.json
index c4123bf..89e469f 100644
--- a/package.json
+++ b/package.json
@@ -61,7 +61,7 @@
     "tailwind-merge": "^3.0.2",
     "tailwindcss-animate": "^1.0.7",
     "winston": "^3.17.0",
-    "zod": "^3.24.2"
+    "zod": "^4.0.0"
   },
   "devDependencies": {
     "@eslint/eslintrc": "^3.3.1",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 57db74a..5a4b6be 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -34,7 +34,7 @@ importers:
         version: 1.2.4(@types/react@19.2.6)(react@19.2.0)
       '@t3-oss/env-nextjs':
         specifier: ^0.13.0
-        version: 0.13.8(arktype@2.1.20)(typescript@5.9.3)(valibot@1.0.0-beta.15(typescript@5.9.3))(zod@3.25.76)
+        version: 0.13.8(arktype@2.1.20)(typescript@5.9.3)(valibot@1.0.0-beta.15(typescript@5.9.3))(zod@4.1.12)
       '@tailwindcss/typography':
         specifier: ^0.5.16
         version: 0.5.19(tailwindcss@4.1.17)
@@ -117,8 +117,8 @@ importers:
         specifier: ^3.17.0
         version: 3.18.3
       zod:
-        specifier: ^3.24.2
-        version: 3.25.76
+        specifier: ^4.0.0
+        version: 4.1.12
     devDependencies:
       '@eslint/eslintrc':
         specifier: ^3.3.1
@@ -3448,6 +3448,7 @@ packages:
   next@15.5.6:
     resolution: {integrity: sha512-zTxsnI3LQo3c9HSdSf91O1jMNsEzIXDShXd4wVdg9y5shwLqBXi4ZtUUJyB86KGVSJLZx0PFONvO54aheGX8QQ==}
     engines: {node: ^18.18.0 || ^19.8.0 || >= 20.0.0}
+    deprecated: This version has a security vulnerability. Please upgrade to a patched version. See https://nextjs.org/blog/CVE-2025-66478 for more details.
     hasBin: true
     peerDependencies:
       '@opentelemetry/api': ^1.1.0
@@ -5948,21 +5949,21 @@ snapshots:
     dependencies:
       tslib: 2.8.1
 
-  '@t3-oss/env-core@0.13.8(arktype@2.1.20)(typescript@5.9.3)(valibot@1.0.0-beta.15(typescript@5.9.3))(zod@3.25.76)':
+  '@t3-oss/env-core@0.13.8(arktype@2.1.20)(typescript@5.9.3)(valibot@1.0.0-beta.15(typescript@5.9.3))(zod@4.1.12)':
     optionalDependencies:
       arktype: 2.1.20
       typescript: 5.9.3
       valibot: 1.0.0-beta.15(typescript@5.9.3)
-      zod: 3.25.76
+      zod: 4.1.12
 
-  '@t3-oss/env-nextjs@0.13.8(arktype@2.1.20)(typescript@5.9.3)(valibot@1.0.0-beta.15(typescript@5.9.3))(zod@3.25.76)':
+  '@t3-oss/env-nextjs@0.13.8(arktype@2.1.20)(typescript@5.9.3)(valibot@1.0.0-beta.15(typescript@5.9.3))(zod@4.1.12)':
     dependencies:
-      '@t3-oss/env-core': 0.13.8(arktype@2.1.20)(typescript@5.9.3)(valibot@1.0.0-beta.15(typescript@5.9.3))(zod@3.25.76)
+      '@t3-oss/env-core': 0.13.8(arktype@2.1.20)(typescript@5.9.3)(valibot@1.0.0-beta.15(typescript@5.9.3))(zod@4.1.12)
     optionalDependencies:
       arktype: 2.1.20
       typescript: 5.9.3
       valibot: 1.0.0-beta.15(typescript@5.9.3)
-      zod: 3.25.76
+      zod: 4.1.12
 
   '@tailwindcss/node@4.1.17':
     dependencies: