diff --git a/sdk/package-lock.json b/sdk/package-lock.json
index 27657e0..d1e7aa4 100644
--- a/sdk/package-lock.json
+++ b/sdk/package-lock.json
@@ -1,15 +1,15 @@
 {
   "name": "@satrank/sdk",
-  "version": "1.2.0",
+  "version": "1.6.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@satrank/sdk",
-      "version": "1.2.0",
+      "version": "1.6.0",
       "license": "MIT",
       "devDependencies": {
-        "@types/node": "^20.0.0",
+        "@types/node": "^26.1.0",
         "typescript": "^5.7.3",
         "vitest": "^3.2.4"
       },
@@ -842,13 +842,13 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "20.19.39",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-20.19.39.tgz",
-      "integrity": "sha512-orrrD74MBUyK8jOAD/r0+lfa1I2MO6I+vAkmAWzMYbCcgrN4lCrmK52gRFQq/JRxfYPfonkr4b0jcY7Olqdqbw==",
+      "version": "26.1.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.1.0.tgz",
+      "integrity": "sha512-O0A1G3xPGy4w7AgQdAQYUlQ+BKk2Oovw8eRpofyp5KdBZULnbe+WqaOVNrm705SHphCiG4XHsACrSmPu1f+Kgw==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": "~8.3.0"
       }
     },
     "node_modules/@vitest/expect": {
@@ -1424,9 +1424,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "6.21.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
-      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "version": "8.3.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.3.0.tgz",
+      "integrity": "sha512-j375ScV60dom+YkPFIfTLcOiPxkN/buHz5GobjLhixFuANaNs3C9l4GmrWqejgXWJ7BbJcFYpTEUkS1Ge8bpZQ==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/sdk/package.json b/sdk/package.json
index 8dcb31d..f9a04de 100644
--- a/sdk/package.json
+++ b/sdk/package.json
@@ -50,7 +50,7 @@
   ],
   "license": "MIT",
   "devDependencies": {
-    "@types/node": "^20.0.0",
+    "@types/node": "^26.1.0",
     "typescript": "^5.7.3",
     "vitest": "^3.2.4"
   },