diff --git a/package.json b/package.json
index ff3cbcf..00a7bca 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
   "dependencies": {
     "@langchain/core": "^0.3.44",
     "axios": "^1.8.4",
-    "zod": "^3.24.2"
+    "zod": "^4.1.5"
   },
   "devDependencies": {
     "@biomejs/biome": "1.9.4",
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 440b53c..5a1b657 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -15,8 +15,8 @@ importers:
         specifier: ^1.8.4
         version: 1.8.4
       zod:
-        specifier: ^3.24.2
-        version: 3.24.2
+        specifier: ^4.1.5
+        version: 4.1.5
     devDependencies:
       '@biomejs/biome':
         specifier: 1.9.4
@@ -1662,8 +1662,11 @@ packages:
     peerDependencies:
       zod: ^3.24.1
 
-  zod@3.24.2:
-    resolution: {integrity: sha512-lY7CDW43ECgW9u1TcT3IoXHflywfVqDYze4waEz812jR/bZ8FHDsl7pFQoSZTz5N+2NqRXs8GBwnAwo3ZNxqhQ==}
+  zod@3.25.76:
+    resolution: {integrity: sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==}
+
+  zod@4.1.5:
+    resolution: {integrity: sha512-rcUUZqlLJgBC33IT3PNMgsCq6TzLQEG/Ei/KTCU0PedSWRMAXoOUN+4t/0H+Q8bdnLPdqUYnvboJT0bn/229qg==}
 
 snapshots:
 
@@ -2011,8 +2014,8 @@ snapshots:
       p-queue: 6.6.2
       p-retry: 4.6.2
       uuid: 10.0.0
-      zod: 3.24.2
-      zod-to-json-schema: 3.24.5(zod@3.24.2)
+      zod: 3.25.76
+      zod-to-json-schema: 3.24.5(zod@3.25.76)
     transitivePeerDependencies:
       - openai
 
@@ -3208,8 +3211,10 @@ snapshots:
 
   yn@3.1.1: {}
 
-  zod-to-json-schema@3.24.5(zod@3.24.2):
+  zod-to-json-schema@3.24.5(zod@3.25.76):
     dependencies:
-      zod: 3.24.2
+      zod: 3.25.76
+
+  zod@3.25.76: {}
 
-  zod@3.24.2: {}
+  zod@4.1.5: {}