diff --git a/src/microsoft-trydotnet-editor/package-lock.json b/src/microsoft-trydotnet-editor/package-lock.json
index a4c541517..e6ac28a23 100644
--- a/src/microsoft-trydotnet-editor/package-lock.json
+++ b/src/microsoft-trydotnet-editor/package-lock.json
@@ -19,7 +19,7 @@
         "@types/chai": "5.0.1",
         "@types/chai-as-promised": "^8.0.2",
         "@types/mocha": "^10.0.10",
-        "@types/node": "^25.7.0",
+        "@types/node": "^26.2.0",
         "@types/tmp": "^0.2.6",
         "@typescript-eslint/eslint-plugin": "^8.59.1",
         "@typescript-eslint/parser": "^8.58.0",
@@ -763,12 +763,13 @@
       "dev": true
     },
     "node_modules/@types/node": {
-      "version": "25.7.0",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.7.0.tgz",
-      "integrity": "sha512-z+pdZyxE+RTQE9AcboAZCb4otwcrvgHD+GlBpPgn0emDVt0ohrTMhAwlr2Wd9nZ+nihhYFxO2pThz3C5qSu2Eg==",
+      "version": "26.2.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.2.0.tgz",
+      "integrity": "sha512-5IviulTZeRNp2vAJ514cc/HUlY5nZ9fCbq9DMyC52BrhFZACo3nI0R7qBxhQmo/d27NFe96ur/b7Wwxklda+kg==",
       "dev": true,
+      "license": "MIT",
       "dependencies": {
-        "undici-types": "~7.21.0"
+        "undici-types": "~8.3.0"
       }
     },
     "node_modules/@types/tmp": {
@@ -4522,10 +4523,11 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "7.21.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.21.0.tgz",
-      "integrity": "sha512-w9IMgQrz4O0YN1LtB7K5P63vhlIOvC7opSmouCJ+ZywlPAlO9gIkJ+otk6LvGpAs2wg4econaCz3TvQ9xPoyuQ==",
-      "dev": true
+      "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"
     },
     "node_modules/update-browserslist-db": {
       "version": "1.2.3",
diff --git a/src/microsoft-trydotnet-editor/package.json b/src/microsoft-trydotnet-editor/package.json
index 9994c7b83..483aa9129 100644
--- a/src/microsoft-trydotnet-editor/package.json
+++ b/src/microsoft-trydotnet-editor/package.json
@@ -27,7 +27,7 @@
     "@types/chai": "5.0.1",
     "@types/chai-as-promised": "^8.0.2",
     "@types/mocha": "^10.0.10",
-    "@types/node": "^25.7.0",
+    "@types/node": "^26.2.0",
     "@types/tmp": "^0.2.6",
     "@typescript-eslint/eslint-plugin": "^8.59.1",
     "@typescript-eslint/parser": "^8.58.0",