diff --git a/package.json b/package.json
index cc6699d..b3d9084 100644
--- a/package.json
+++ b/package.json
@@ -8,7 +8,7 @@
   "type": "module",
   "packageManager": "pnpm@8.6.8",
   "engines": {
-    "node": ">=18 <19"
+    "node": ">=18 <21"
   },
   "scripts": {
     "build": "tsm build.ts --tsmconfig .tsm.js",
@@ -39,7 +39,7 @@
     "@types/js-yaml": "^4.0.5",
     "@types/markdown-it": "^13.0.0",
     "@types/markdown-it-link-attributes": "^3.0.1",
-    "@types/node": "^18.16.0",
+    "@types/node": "^20.0.0",
     "rimraf": "^5.0.0",
     "serve": "^14.2.0",
     "typescript": "^4.9.5"
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index df4002a..dff8863 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -68,8 +68,8 @@ devDependencies:
     specifier: ^3.0.1
     version: 3.0.1
   '@types/node':
-    specifier: ^18.16.0
-    version: 18.16.0
+    specifier: ^20.0.0
+    version: 20.0.0
   rimraf:
     specifier: ^5.0.0
     version: 5.0.0
@@ -356,8 +356,8 @@ packages:
   /@types/mdurl@1.0.2:
     resolution: {integrity: sha512-eC4U9MlIcu2q0KQmXszyn5Akca/0jrQmwDRgpAMJai7qBWq4amIQhZyNau4VYGtCeALvW1/NtjzJJ567aZxfKA==}
 
-  /@types/node@18.16.0:
-    resolution: {integrity: sha512-BsAaKhB+7X+H4GnSjGhJG9Qi8Tw+inU9nJDwmD5CgOmBLEI6ArdhikpLX7DjbjDRDTbqZzU2LSQNZg8WGPiSZQ==}
+  /@types/node@20.0.0:
+    resolution: {integrity: sha512-cD2uPTDnQQCVpmRefonO98/PPijuOnnEy5oytWJFPY1N9aJCz2wJ5kSGWO+zJoed2cY2JxQh6yBuUq4vIn61hw==}
     dev: true
 
   /@types/trusted-types@2.0.3: