diff --git a/package-lock.json b/package-lock.json
index 9afa589..688126b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15,7 +15,7 @@
                 "@kayahr/ntest": "1.3.0",
                 "@kayahr/oxlint-config": "1.38.0",
                 "@kayahr/typedoc": "0.28.19-bundle.1",
-                "@types/node": "25.9.3",
+                "@types/node": "26.1.0",
                 "typescript": "6.0.3"
             },
             "funding": {
@@ -538,13 +538,13 @@
             }
         },
         "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": "26.1.0",
+            "resolved": "https://registry.npmjs.org/@types/node/-/node-26.1.0.tgz",
+            "integrity": "sha512-O0A1G3xPGy4w7AgQdAQYUlQ+BKk2Oovw8eRpofyp5KdBZULnbe+WqaOVNrm705SHphCiG4XHsACrSmPu1f+Kgw==",
             "dev": true,
             "license": "MIT",
             "dependencies": {
-                "undici-types": ">=7.24.0 <7.24.7"
+                "undici-types": "~8.3.0"
             }
         },
         "node_modules/oxlint": {
@@ -629,9 +629,9 @@
             }
         },
         "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/package.json b/package.json
index 843bcb5..15234e0 100644
--- a/package.json
+++ b/package.json
@@ -56,7 +56,7 @@
         "@kayahr/ntest": "1.3.0",
         "@kayahr/oxlint-config": "1.38.0",
         "@kayahr/typedoc": "0.28.19-bundle.1",
-        "@types/node": "25.9.3",
+        "@types/node": "26.1.0",
         "typescript": "6.0.3"
     }
 }