diff --git a/app-auth/graphapponlytutorial/package-lock.json b/app-auth/graphapponlytutorial/package-lock.json
index e22e2cc4..c98b7b60 100644
--- a/app-auth/graphapponlytutorial/package-lock.json
+++ b/app-auth/graphapponlytutorial/package-lock.json
@@ -18,7 +18,7 @@
         "@microsoft/microsoft-graph-types": "^2.43.1",
         "@tony.ganchev/eslint-plugin-header": "^3.4.4",
         "@types/isomorphic-fetch": "^0.0.39",
-        "@types/node": "^25.9.3",
+        "@types/node": "^26.0.0",
         "@types/readline-sync": "^1.4.8",
         "eslint": "^10.5.0",
         "eslint-config-prettier": "^10.1.8",
@@ -878,13 +878,13 @@
       "license": "MIT"
     },
     "node_modules/@types/node": {
-      "version": "25.9.3",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-25.9.3.tgz",
-      "integrity": "sha512-603BddQMv3pUcr4U2dhujk83N2tTDVr/34wII2B6bJy6g+8WD6yUb11jszNs0gdi4PesVWl7ABt8nYMVpnLUcg==",
+      "version": "26.0.0",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-26.0.0.tgz",
+      "integrity": "sha512-vf2YFi1iY9lHGwNJMs01biZFbKJkrZR1T6/MlzjhJLPdntOHLhTrDSnSVcdtvjihi4VQNlrFRIxLsDBlQpAipA==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": ">=7.24.0 <7.24.7"
+        "undici-types": "~8.3.0"
       }
     },
     "node_modules/@types/readline-sync": {
@@ -2424,9 +2424,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "7.24.6",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.24.6.tgz",
-      "integrity": "sha512-WRNW+sJgj5OBN4/0JpHFqtqzhpbnV0GuB+OozA9gCL7a993SmU+1JBZCzLNxYsbMfIeDL+lTsphD5jN5N+n0zg==",
+      "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"
     },
diff --git a/app-auth/graphapponlytutorial/package.json b/app-auth/graphapponlytutorial/package.json
index b523a330..a45fd115 100644
--- a/app-auth/graphapponlytutorial/package.json
+++ b/app-auth/graphapponlytutorial/package.json
@@ -16,7 +16,7 @@
     "@microsoft/microsoft-graph-types": "^2.43.1",
     "@tony.ganchev/eslint-plugin-header": "^3.4.4",
     "@types/isomorphic-fetch": "^0.0.39",
-    "@types/node": "^25.9.3",
+    "@types/node": "^26.0.0",
     "@types/readline-sync": "^1.4.8",
     "eslint": "^10.5.0",
     "eslint-config-prettier": "^10.1.8",