diff --git a/package-lock.json b/package-lock.json
index e8cc2d44..49f785b7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -21,7 +21,7 @@
         "@types/node": "^22.19.20",
         "typescript": "^5.6.3",
         "vitest": "^4.1.10",
-        "zod": "^3.25.0",
+        "zod": "^4.4.3",
         "zod-to-json-schema": "^3.24.0"
       }
     },
@@ -133,16 +133,6 @@
         }
       }
     },
-    "node_modules/@agentskit/chat/node_modules/zod": {
-      "version": "4.4.3",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-4.4.3.tgz",
-      "integrity": "sha512-ytENFjIJFl2UwYglde2jchW2Hwm4GJFLDiSXWdTrJQBIN9Fcyp7n4DhxJEiWNAJMV1/BqWfW/kkg71UDcHJyTQ==",
-      "dev": true,
-      "license": "MIT",
-      "funding": {
-        "url": "https://github.com/sponsors/colinhacks"
-      }
-    },
     "node_modules/@agentskit/core": {
       "version": "1.12.3",
       "resolved": "https://registry.npmjs.org/@agentskit/core/-/core-1.12.3.tgz",
@@ -194,6 +184,16 @@
         }
       }
     },
+    "node_modules/@agentskit/doc-bridge/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",
+      "funding": {
+        "url": "https://github.com/sponsors/colinhacks"
+      }
+    },
     "node_modules/@agentskit/eval": {
       "version": "0.4.19",
       "resolved": "https://registry.npmjs.org/@agentskit/eval/-/eval-0.4.19.tgz",
@@ -1567,9 +1567,9 @@
       }
     },
     "node_modules/zod": {
-      "version": "3.25.76",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-3.25.76.tgz",
-      "integrity": "sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==",
+      "version": "4.4.3",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.4.3.tgz",
+      "integrity": "sha512-ytENFjIJFl2UwYglde2jchW2Hwm4GJFLDiSXWdTrJQBIN9Fcyp7n4DhxJEiWNAJMV1/BqWfW/kkg71UDcHJyTQ==",
       "dev": true,
       "license": "MIT",
       "funding": {
diff --git a/package.json b/package.json
index efbebe64..52c20b22 100644
--- a/package.json
+++ b/package.json
@@ -52,7 +52,7 @@
     "@types/node": "^22.19.20",
     "typescript": "^5.6.3",
     "vitest": "^4.1.10",
-    "zod": "^3.25.0",
+    "zod": "^4.4.3",
     "zod-to-json-schema": "^3.24.0"
   }
 }