diff --git a/package.json b/package.json
index 6b88036..a69329d 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
     "typecheck": "pnpm build && pnpm -r --if-present typecheck"
   },
   "devDependencies": {
-    "@types/node": "^24.0.7",
+    "@types/node": "^26.5.0",
     "tsx": "^4.20.3",
     "typescript": "^5.8.3"
   },
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 13d9251..e7fb7a5 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -9,8 +9,8 @@ importers:
   .:
     devDependencies:
       '@types/node':
-        specifier: ^24.0.7
-        version: 24.13.2
+        specifier: ^26.5.0
+        version: 26.5.0
       tsx:
         specifier: ^4.20.3
         version: 4.22.4
@@ -193,8 +193,8 @@ packages:
     cpu: [x64]
     os: [win32]
 
-  '@types/node@24.13.2':
-    resolution: {integrity: sha512-fRa09kZTgu8o71KFcDjUFuc7F+dEbZYZmkI0mg5YBTRs0yMKjYHsq/c0urDKeDb+D5qVgXOdFcuu+DZPKOITwA==}
+  '@types/node@26.5.0':
+    resolution: {integrity: sha512-dVSGpriSoCgz8WnDNTuSSuSv1PC/ALXihO4ulRZt7Md8k9mlbdin3lGOcDE8SnWOgf513ByWlXd7BK4azmyg/A==}
 
   esbuild@0.28.1:
     resolution: {integrity: sha512-HrJrvZv5ayxBzPfwphOoNzkzOIIlifzk0KJrGK2c8R4+LKpMtpYLQeUdjnwjWv/LZlkH2laZk+4w78pi99D4Vw==}
@@ -216,8 +216,8 @@ packages:
     engines: {node: '>=14.17'}
     hasBin: true
 
-  undici-types@7.18.2:
-    resolution: {integrity: sha512-AsuCzffGHJybSaRrmr5eHr81mwJU3kjw6M+uprWvCXiNeN9SOGwQ3Jn8jb8m3Z6izVgknn1R0FTCEAP2QrLY/w==}
+  undici-types@8.9.0:
+    resolution: {integrity: sha512-KTDyRTYX8sWmKXAikPHHSyc63CRPETMctyjKFupcC6OBLXT3xsN0e9aF7m+mIXutFWpUXuedtowG7iLOzp0kQg==}
 
 snapshots:
 
@@ -299,9 +299,9 @@ snapshots:
   '@esbuild/win32-x64@0.28.1':
     optional: true
 
-  '@types/node@24.13.2':
+  '@types/node@26.5.0':
     dependencies:
-      undici-types: 7.18.2
+      undici-types: 8.9.0
 
   esbuild@0.28.1:
     optionalDependencies:
@@ -343,4 +343,4 @@ snapshots:
 
   typescript@5.9.3: {}
 
-  undici-types@7.18.2: {}
+  undici-types@8.9.0: {}