diff --git a/bridge/bun.lock b/bridge/bun.lock
index ed2ddbe..b2b176d 100644
--- a/bridge/bun.lock
+++ b/bridge/bun.lock
@@ -6,7 +6,7 @@
       "name": "valar-mcp-bridge",
       "dependencies": {
         "@modelcontextprotocol/sdk": "^1.29.0",
-        "zod": "^3.25.76",
+        "zod": "^4.4.3",
       },
       "devDependencies": {
         "@types/bun": "1.3.14",
@@ -210,8 +210,10 @@
 
     "wrappy": ["wrappy@1.0.2", "", {}, "sha512-l4Sp/DRseor9wL6EvV2+TuQn63dMkPjZ/sp9XkghTEbV9KlPS1xUsZ3u7/IQO4wxtcFB4bgpQPRcR3QCvezPcQ=="],
 
-    "zod": ["zod@3.25.76", "", {}, "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ=="],
+    "zod": ["zod@4.4.3", "", {}, "sha512-ytENFjIJFl2UwYglde2jchW2Hwm4GJFLDiSXWdTrJQBIN9Fcyp7n4DhxJEiWNAJMV1/BqWfW/kkg71UDcHJyTQ=="],
 
     "zod-to-json-schema": ["zod-to-json-schema@3.25.1", "", { "peerDependencies": { "zod": "^3.25 || ^4" } }, "sha512-pM/SU9d3YAggzi6MtR4h7ruuQlqKtad8e9S0fmxcMi+ueAK5Korys/aWcV9LIIHTVbj01NdzxcnXSN+O74ZIVA=="],
+
+    "@modelcontextprotocol/sdk/zod": ["zod@3.25.76", "", {}, "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ=="],
   }
 }
diff --git a/bridge/package.json b/bridge/package.json
index 9fdaa2b..bed410e 100644
--- a/bridge/package.json
+++ b/bridge/package.json
@@ -11,7 +11,7 @@
   },
   "dependencies": {
     "@modelcontextprotocol/sdk": "^1.29.0",
-    "zod": "^3.25.76"
+    "zod": "^4.4.3"
   },
   "devDependencies": {
     "@types/bun": "1.3.14",