diff --git a/package-lock.json b/package-lock.json
index f95fc28..0eab44b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -18,7 +18,7 @@
         "bitpay-sdk": "bin/index.js"
       },
       "devDependencies": {
-        "@types/bs58": "4.0.4",
+        "@types/bs58": "5.0.0",
         "@types/elliptic": "6.4.18",
         "@types/jest": "30.0.0",
         "@types/lodash": "4.17.20",
@@ -1783,14 +1783,14 @@
       }
     },
     "node_modules/@types/bs58": {
-      "version": "4.0.4",
-      "resolved": "https://registry.npmjs.org/@types/bs58/-/bs58-4.0.4.tgz",
-      "integrity": "sha512-0IEpMFXXQi2zXaXl9GJ3sRwQo0uEkD+yFOv+FnAU5lkPtcu6h61xb7jc2CFPEZ5BUOaiP13ThuGc9HD4R8lR5g==",
+      "version": "5.0.0",
+      "resolved": "https://registry.npmjs.org/@types/bs58/-/bs58-5.0.0.tgz",
+      "integrity": "sha512-cAw/jKBzo98m6Xz1X5ETqymWfIMbXbu6nK15W4LQYjeHJkVqSmM5PO8Bd9KVHQJ/F4rHcSso9LcjtgCW6TGu2w==",
+      "deprecated": "This is a stub types definition. bs58 provides its own type definitions, so you do not need this installed.",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "@types/node": "*",
-        "base-x": "^3.0.6"
+        "bs58": "*"
       }
     },
     "node_modules/@types/cookie": {
@@ -2777,16 +2777,6 @@
       "dev": true,
       "license": "MIT"
     },
-    "node_modules/base-x": {
-      "version": "3.0.11",
-      "resolved": "https://registry.npmjs.org/base-x/-/base-x-3.0.11.tgz",
-      "integrity": "sha512-xz7wQ8xDhdyP7tQxwdteLYeFfS68tSMNCZ/Y37WJ4bhGfKPpqEIlmIyueQHqOyoPhE6xNUqjzRr8ra0eF9VRvA==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "safe-buffer": "^5.0.1"
-      }
-    },
     "node_modules/bn.js": {
       "version": "4.12.1",
       "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.12.1.tgz",
@@ -8544,27 +8534,6 @@
         "queue-microtask": "^1.2.2"
       }
     },
-    "node_modules/safe-buffer": {
-      "version": "5.2.1",
-      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.2.1.tgz",
-      "integrity": "sha512-rp3So07KcdmmKbGvgaNxQSJr7bGVSVk5S9Eq1F+ppbRo70+YeaDxkw5Dd8NPN+GD6bjnYm2VuPuCXmpuYvmCXQ==",
-      "dev": true,
-      "funding": [
-        {
-          "type": "github",
-          "url": "https://github.com/sponsors/feross"
-        },
-        {
-          "type": "patreon",
-          "url": "https://www.patreon.com/feross"
-        },
-        {
-          "type": "consulting",
-          "url": "https://feross.org/support"
-        }
-      ],
-      "license": "MIT"
-    },
     "node_modules/semver": {
       "version": "7.7.2",
       "resolved": "https://registry.npmjs.org/semver/-/semver-7.7.2.tgz",
diff --git a/package.json b/package.json
index 19e1285..224e6fe 100644
--- a/package.json
+++ b/package.json
@@ -57,7 +57,7 @@
     "zod": "3.25.76"
   },
   "devDependencies": {
-    "@types/bs58": "4.0.4",
+    "@types/bs58": "5.0.0",
     "@types/elliptic": "6.4.18",
     "@types/jest": "30.0.0",
     "@types/lodash": "4.17.20",