diff --git a/sdk/typescript/package-lock.json b/sdk/typescript/package-lock.json
index ea3cefe..ceb5316 100644
--- a/sdk/typescript/package-lock.json
+++ b/sdk/typescript/package-lock.json
@@ -9,7 +9,7 @@
       "version": "0.1.0",
       "license": "MIT",
       "devDependencies": {
-        "@types/node": "^22.0.0",
+        "@types/node": "^26.6.4",
         "typescript": "^5.6.0"
       },
       "engines": {
@@ -17,13 +17,13 @@
       }
     },
     "node_modules/@types/node": {
-      "version": "22.20.5",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.20.5.tgz",
-      "integrity": "sha512-U2+DNr+wSjpsTS/wZGYHq7GcwfuSmKiKvoPvK22zwTlRhU91yOniN4qRR5KhIjvif7ysw/dz/hKmfDH0Ris4aA==",
+      "version": "26.6.4",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.6.4.tgz",
+      "integrity": "sha512-ldVPDCzj7fsaGZrLB0NuHuTvJcsNasysBAqMolr/cgxrLd1xbqxIr3XJiPnHHJUCxj5sNF1vnRj9aWnrVh5Jcg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": "~8.9.0"
       }
     },
     "node_modules/typescript": {
@@ -41,9 +41,9 @@
       }
     },
     "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": "8.9.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.9.0.tgz",
+      "integrity": "sha512-KTDyRTYX8sWmKXAikPHHSyc63CRPETMctyjKFupcC6OBLXT3xsN0e9aF7m+mIXutFWpUXuedtowG7iLOzp0kQg==",
       "dev": true,
       "license": "MIT"
     }
diff --git a/sdk/typescript/package.json b/sdk/typescript/package.json
index b922b57..2b9a8b7 100644
--- a/sdk/typescript/package.json
+++ b/sdk/typescript/package.json
@@ -14,5 +14,5 @@
     "test": "node --test test/*.test.mjs"
   },
   "repository": { "type": "git", "url": "https://github.com/chxperiments/box", "directory": "sdk/typescript" },
-  "devDependencies": { "typescript": "^5.6.0", "@types/node": "^22.0.0" }
+  "devDependencies": { "typescript": "^5.6.0", "@types/node": "^26.6.4" }
 }