diff --git a/typescript/typescript-book/jest-tutorial/.node-version b/typescript/typescript-book/jest-tutorial/.node-version
index 2a393af5..7af24b7d 100644
--- a/typescript/typescript-book/jest-tutorial/.node-version
+++ b/typescript/typescript-book/jest-tutorial/.node-version
@@ -1 +1 @@
-20.18.0
+22.11.0
diff --git a/typescript/typescript-book/random-cat/package.json b/typescript/typescript-book/random-cat/package.json
index 63ca1e93..67c66dc9 100644
--- a/typescript/typescript-book/random-cat/package.json
+++ b/typescript/typescript-book/random-cat/package.json
@@ -12,7 +12,7 @@
     "react-dom": "^18.2.0"
   },
   "devDependencies": {
-    "@types/node": "^20.0.0",
+    "@types/node": "^22.0.0",
     "@types/react": "^18.0.0",
     "@types/react-dom": "^18.0.0",
     "typescript": "^5.0.0"
diff --git a/typescript/typescript-book/random-cat/yarn.lock b/typescript/typescript-book/random-cat/yarn.lock
index 2a093267..f407d89f 100644
--- a/typescript/typescript-book/random-cat/yarn.lock
+++ b/typescript/typescript-book/random-cat/yarn.lock
@@ -179,12 +179,12 @@
   dependencies:
     tslib "^2.4.0"
 
-"@types/node@^20.0.0":
-  version "20.17.6"
-  resolved "https://registry.yarnpkg.com/@types/node/-/node-20.17.6.tgz#6e4073230c180d3579e8c60141f99efdf5df0081"
-  integrity sha512-VEI7OdvK2wP7XHnsuXbAJnEpEkF6NjSN45QJlL4VGqZSXsnicpesdTWsg9RISeSdYd3yeRj/y3k5KGjUXYnFwQ==
+"@types/node@^22.0.0":
+  version "22.9.0"
+  resolved "https://registry.yarnpkg.com/@types/node/-/node-22.9.0.tgz#b7f16e5c3384788542c72dc3d561a7ceae2c0365"
+  integrity sha512-vuyHg81vvWA1Z1ELfvLko2c8f34gyA0zaic0+Rllc5lbCnbSyuvb2Oxpm6TAUAC/2xZN3QGqxBNggD1nNR2AfQ==
   dependencies:
-    undici-types "~6.19.2"
+    undici-types "~6.19.8"
 
 "@types/prop-types@*":
   version "15.7.13"
@@ -410,7 +410,7 @@ typescript@^5.0.0:
   resolved "https://registry.yarnpkg.com/typescript/-/typescript-5.6.3.tgz#5f3449e31c9d94febb17de03cc081dd56d81db5b"
   integrity sha512-hjcS1mhfuyi4WW8IWtjP7brDrG2cuDZukyrYrSauoXGNgx0S7zceP07adYkJycEr56BOUTNPzbInooiN3fn1qw==
 
-undici-types@~6.19.2:
+undici-types@~6.19.8:
   version "6.19.8"
   resolved "https://registry.yarnpkg.com/undici-types/-/undici-types-6.19.8.tgz#35111c9d1437ab83a7cdc0abae2f26d88eda0a02"
   integrity sha512-ve2KP6f/JnbPBFyobGHuerC9g1FYGn/F8n1LWTwNxCEzd6IfqTwUQcNXgEtmmQ6DlRrC1hrSrBnCZPokRrDHjw==