diff --git a/package-lock.json b/package-lock.json
index 069e9ba..5f31b7b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -12,7 +12,7 @@
         "bs58": "6.0.0",
         "elliptic": "6.6.1",
         "lodash": "4.18.1",
-        "zod": "4.4.3"
+        "zod": "4.5.1"
       },
       "bin": {
         "bitpay-sdk": "bin/index.js"
@@ -8253,9 +8253,9 @@
       }
     },
     "node_modules/zod": {
-      "version": "4.4.3",
-      "resolved": "https://registry.npmjs.org/zod/-/zod-4.4.3.tgz",
-      "integrity": "sha512-ytENFjIJFl2UwYglde2jchW2Hwm4GJFLDiSXWdTrJQBIN9Fcyp7n4DhxJEiWNAJMV1/BqWfW/kkg71UDcHJyTQ==",
+      "version": "4.5.1",
+      "resolved": "https://registry.npmjs.org/zod/-/zod-4.5.1.tgz",
+      "integrity": "sha512-P3GqeAEOEDqKvafVGLezbg+39YW/ze4xrD4qdS0adOY8eoI3zfjv1PQM4UwQzgT8mZKXEbqtVt8K+ZKGqkMFKg==",
       "license": "MIT",
       "funding": {
         "url": "https://github.com/sponsors/colinhacks"
diff --git a/package.json b/package.json
index 28f16cf..c68190a 100644
--- a/package.json
+++ b/package.json
@@ -54,7 +54,7 @@
     "bs58": "6.0.0",
     "elliptic": "6.6.1",
     "lodash": "4.18.1",
-    "zod": "4.4.3"
+    "zod": "4.5.1"
   },
   "devDependencies": {
     "@babel/core": "7.29.7",