diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index c4027644..6228874d 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -29,7 +29,7 @@ jobs:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
       - uses: actions/setup-node@v6
         with:
-          node-version: 18
+          node-version: 24
       - run: npm ci
       - run: npm run system-test
   system_test:
@@ -38,7 +38,7 @@ jobs:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
       - uses: actions/setup-node@v6
         with:
-          node-version: 18
+          node-version: 24
       - run: npm ci
       - run: npm run system-test
   lint:
@@ -47,7 +47,7 @@ jobs:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
       - uses: actions/setup-node@v6
         with:
-          node-version: 18
+          node-version: 24
       - run: npm ci
       - run: npm run lint
   license_check:
@@ -56,6 +56,6 @@ jobs:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
       - uses: actions/setup-node@v6
         with:
-          node-version: 18
+          node-version: 24
       - run: npm ci
       - run: npm run license-check
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 019b90ba..b8b2daa9 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -9,7 +9,7 @@ jobs:
       - uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6
       - uses: actions/setup-node@v6
         with:
-          node-version: 18
+          node-version: 24
           registry-url: 'https://wombat-dressing-room.appspot.com'
       - run: npm ci
       - run: npm publish
diff --git a/package-lock.json b/package-lock.json
index 497068ee..db3f4b2b 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -38,7 +38,7 @@
         "@types/json5": "2.2.0",
         "@types/mocha": "^10.0.0",
         "@types/ncp": "^2.0.4",
-        "@types/node": "^22.7.5",
+        "@types/node": "^24.0.0",
         "@types/sinon": "^21.0.0",
         "@types/tmp": "^0.2.0",
         "@types/write-file-atomic": "^4.0.0",
@@ -554,7 +554,6 @@
       "integrity": "sha512-FXx2pKgId/WyYo2jXw63kk7/+TY7u7AziEJxJAnSFzHlqTAS3Ync6SvgYAN/k4/PQpnnVuzoMuVnByKK2qp0ag==",
       "devOptional": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@types/estree": "*",
         "@types/json-schema": "*"
@@ -663,13 +662,13 @@
       }
     },
     "node_modules/@types/node": {
-      "version": "22.19.1",
-      "resolved": "https://registry.npmjs.org/@types/node/-/node-22.19.1.tgz",
-      "integrity": "sha512-LCCV0HdSZZZb34qifBsyWlUmok6W7ouER+oQIGBScS8EsZsQbrtFTUrDX4hOl+CS6p7cnNC4td+qrSVGSCTUfQ==",
+      "version": "24.10.13",
+      "resolved": "https://registry.npmjs.org/@types/node/-/node-24.10.13.tgz",
+      "integrity": "sha512-oH72nZRfDv9lADUBSo104Aq7gPHpQZc4BTx38r9xf9pg5LfP6EzSyH2n7qFmmxRQXh7YlUXODcYsg6PuTDSxGg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "undici-types": "~6.21.0"
+        "undici-types": "~7.16.0"
       }
     },
     "node_modules/@types/normalize-package-data": {
@@ -766,7 +765,6 @@
       "resolved": "https://registry.npmjs.org/@typescript-eslint/parser/-/parser-8.48.1.tgz",
       "integrity": "sha512-PC0PDZfJg8sP7cmKe6L3QIL8GZwU5aRvUFedqSIpw3B+QjRSUZeeITC2M5XKeMXEzL6wccN196iy3JLwKNvDVA==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@typescript-eslint/scope-manager": "8.48.1",
         "@typescript-eslint/types": "8.48.1",
@@ -961,7 +959,6 @@
       "resolved": "https://registry.npmjs.org/acorn/-/acorn-8.15.0.tgz",
       "integrity": "sha512-NZyJarBfL7nWwIq+FDL6Zp/yHEhePMNnnJ0y3qfieCrmNvYct8uvtiV41UvlSe6apAfk0fY1FbWx+NwfmpvtTg==",
       "license": "MIT",
-      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -1552,7 +1549,6 @@
       "resolved": "https://registry.npmjs.org/eslint/-/eslint-9.39.1.tgz",
       "integrity": "sha512-BhHmn2yNOFA9H9JmmIVKJmd288g9hrVRDkdoIgRCRuSySRUHH7r/DI6aAXW9T1WwUuY3DFgrcaqB+deURBLR5g==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.8.0",
         "@eslint-community/regexpp": "^4.12.1",
@@ -1627,7 +1623,6 @@
       "resolved": "https://registry.npmjs.org/eslint-config-prettier/-/eslint-config-prettier-10.1.8.tgz",
       "integrity": "sha512-82GZUjRS0p/jganf6q1rEO25VSoHH0hKPCTrgillPjdI/3bgBhAE1QzHrHTizjpRvy6pGAvKjDJtk2pF9NDq8w==",
       "license": "MIT",
-      "peer": true,
       "bin": {
         "eslint-config-prettier": "bin/cli.js"
       },
@@ -3429,7 +3424,6 @@
       "resolved": "https://registry.npmjs.org/prettier/-/prettier-3.7.4.tgz",
       "integrity": "sha512-v6UNi1+3hSlVvv8fSaoUbggEM5VErKmmpGA7Pl3HF8V6uKY7rvClBOJlH6yNwQtfTueNkGVpOv/mtWL9L4bgRA==",
       "license": "MIT",
-      "peer": true,
       "bin": {
         "prettier": "bin/prettier.cjs"
       },
@@ -4240,7 +4234,6 @@
       "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.9.3.tgz",
       "integrity": "sha512-jl1vZzPDinLr9eUt3J/t7V6FgNEw9QjvBPdysz9KfQDD41fQrC2Y4vKQdiaUpFT4bXlb1RHhLpp8wtm6M5TgSw==",
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -4273,9 +4266,9 @@
       }
     },
     "node_modules/undici-types": {
-      "version": "6.21.0",
-      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-6.21.0.tgz",
-      "integrity": "sha512-iwDZqg0QAGrg9Rav5H4n0M64c3mkR59cJ6wQp+7C4nI0gsmExaedaYLNO44eT4AtBBwjbTiGPMlt2Md0T9H9JQ==",
+      "version": "7.16.0",
+      "resolved": "https://registry.npmjs.org/undici-types/-/undici-types-7.16.0.tgz",
+      "integrity": "sha512-Zz+aZWSj8LE6zoxD+xrjh4VfkIG8Ya6LvYkZqtUQGJPZjYl53ypCaUwWqo7eI0x66KBGeRo+mlBEkMSeSZ38Nw==",
       "dev": true,
       "license": "MIT"
     },
diff --git a/package.json b/package.json
index 7e841e8b..dcfc7767 100644
--- a/package.json
+++ b/package.json
@@ -71,7 +71,7 @@
     "@types/json5": "2.2.0",
     "@types/mocha": "^10.0.0",
     "@types/ncp": "^2.0.4",
-    "@types/node": "^22.7.5",
+    "@types/node": "^24.0.0",
     "@types/sinon": "^21.0.0",
     "@types/tmp": "^0.2.0",
     "@types/write-file-atomic": "^4.0.0",