diff --git a/test/harness/package-lock.json b/test/harness/package-lock.json
index 0bb201f5..9b7b94fc 100644
--- a/test/harness/package-lock.json
+++ b/test/harness/package-lock.json
@@ -11,7 +11,7 @@
       "devDependencies": {
         "@github/copilot": "^0.0.411",
         "@modelcontextprotocol/sdk": "^1.26.0",
-        "@types/node": "^25.2.0",
+        "@types/node": "^25.2.3",
         "openai": "^6.17.0",
         "tsx": "^4.21.0",
         "typescript": "^5.9.3",
@@ -1025,9 +1025,9 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "25.2.0",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.2.0.tgz",
-      "integrity": "sha512-DZ8VwRFUNzuqJ5khrvwMXHmvPe+zGayJhr2CDNiKB1WBE1ST8Djl00D0IC4vvNmHMdj6DlbYRIaFE7WHjlDl5w==",
+      "version": "25.2.3",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.2.3.tgz",
+      "integrity": "sha512-m0jEgYlYz+mDJZ2+F4v8D1AyQb+QzsNqRuI7xg1VQX/KlKS0qT9r1Mo16yo5F/MtifXFgaofIFsdFMox2SxIbQ==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
diff --git a/test/harness/package.json b/test/harness/package.json
index 65edf4cb..b5791ad1 100644
--- a/test/harness/package.json
+++ b/test/harness/package.json
@@ -13,7 +13,7 @@
   "devDependencies": {
     "@github/copilot": "^0.0.411",
     "@modelcontextprotocol/sdk": "^1.26.0",
-    "@types/node": "^25.2.0",
+    "@types/node": "^25.2.3",
     "openai": "^6.17.0",
     "tsx": "^4.21.0",
     "typescript": "^5.9.3",