diff --git a/package-lock.json b/package-lock.json
index fd23a57..72d36c7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -27,7 +27,7 @@
         "@studio/eslint-config": "^9.0.1",
         "@studio/related-tests": "^0.2.0",
         "@types/mocha": "^10.0.10",
-        "@types/node": "^26.4.1",
+        "@types/node": "^26.5.1",
         "@types/yargs": "^17.0.35",
         "c8": "^12.0.0",
         "eslint": "^10.10.0",
@@ -1489,13 +1489,13 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "26.4.1",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.4.1.tgz",
-      "integrity": "sha512-k97ENvZWtvA6yqz5/FS6a7duDgOPEeOQOc2iKS/nY6mX6qJUKtLnWzQS+Xj6tXweyj6ZcTAK2Qecetnvi9nCLA==",
+      "version": "26.5.1",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.5.1.tgz",
+      "integrity": "sha512-CzNm2FezW4VR/LjG6yUdiEgLE/rAQ9Slj5gCu/C2VrdcW7I0ahNZ8DRbHT7zOZ6r3ONgd/bsQIeSaoDGrd1C6g==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~8.3.0"
+        "undici-types": "~8.9.0"
       }
     },
     "node_modules/@types/which": {
@@ -6886,9 +6886,9 @@
       }
     },
     "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/package.json b/package.json
index 4bf297e..aa630b6 100644
--- a/package.json
+++ b/package.json
@@ -58,7 +58,7 @@
     "@studio/eslint-config": "^9.0.1",
     "@studio/related-tests": "^0.2.0",
     "@types/mocha": "^10.0.10",
-    "@types/node": "^26.4.1",
+    "@types/node": "^26.5.1",
     "@types/yargs": "^17.0.35",
     "c8": "^12.0.0",
     "eslint": "^10.10.0",