diff --git a/actions/setup/js/package-lock.json b/actions/setup/js/package-lock.json
index 2ffc8099ab0..d5703adb906 100644
--- a/actions/setup/js/package-lock.json
+++ b/actions/setup/js/package-lock.json
@@ -13,7 +13,7 @@
         "@actions/glob": "^0.7.0",
         "@actions/io": "^3.0.2",
         "@github/copilot-sdk": "^1.0.13",
-        "@types/node": "^26.2.0",
+        "@types/node": "^26.5.0",
         "@vitest/coverage-v8": "^5.0.0",
         "@vitest/ui": "^5.0.0",
         "minimatch": ">=10.2.6",
@@ -1554,19 +1554,19 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "26.2.0",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.2.0.tgz",
-      "integrity": "sha512-5IviulTZeRNp2vAJ514cc/HUlY5nZ9fCbq9DMyC52BrhFZACo3nI0R7qBxhQmo/d27NFe96ur/b7Wwxklda+kg==",
+      "version": "26.5.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.5.0.tgz",
+      "integrity": "sha512-dVSGpriSoCgz8WnDNTuSSuSv1PC/ALXihO4ulRZt7Md8k9mlbdin3lGOcDE8SnWOgf513ByWlXd7BK4azmyg/A==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~8.3.0"
+        "undici-types": "~8.9.0"
       }
     },
     "node_modules/@types/node/node_modules/undici-types": {
-      "version": "8.3.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-8.3.0.tgz",
-      "integrity": "sha512-j375ScV60dom+YkPFIfTLcOiPxkN/buHz5GobjLhixFuANaNs3C9l4GmrWqejgXWJ7BbJcFYpTEUkS1Ge8bpZQ==",
+      "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/actions/setup/js/package.json b/actions/setup/js/package.json
index 2735cd40283..69732df0fe9 100644
--- a/actions/setup/js/package.json
+++ b/actions/setup/js/package.json
@@ -8,7 +8,7 @@
     "@actions/glob": "^0.7.0",
     "@actions/io": "^3.0.2",
     "@github/copilot-sdk": "^1.0.13",
-    "@types/node": "^26.2.0",
+    "@types/node": "^26.5.0",
     "@vitest/coverage-v8": "^5.0.0",
     "@vitest/ui": "^5.0.0",
     "minimatch": ">=10.2.6",