diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 7da4b41b..f727c83c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -31,6 +31,8 @@ jobs:
       fail-fast: false
       matrix:
         node:
+          - '26'
+          - '24'
           - '22'
           - '20'
     name: Node.js ${{ matrix.node }}
@@ -58,6 +60,7 @@ jobs:
       - uses: actions/checkout@v6
       - uses: actions/setup-node@v6
         with:
+          node-version: 'lts/*'
           cache: 'yarn'
       - run: yarn install --immutable
       - run: yarn build
diff --git a/package.json b/package.json
index 5d2cf036..16ef7582 100644
--- a/package.json
+++ b/package.json
@@ -47,7 +47,6 @@
     "tsdown": "0.22.0",
     "typescript": "6.0.3",
     "typescript-eslint": "8.59.4",
-    "unrun": "0.3.0",
     "vitest": "4.1.6"
   },
   "peerDependencies": {
diff --git a/tsdown.config.js b/tsdown.config.ts
similarity index 100%
rename from tsdown.config.js
rename to tsdown.config.ts
diff --git a/vitest.config.js b/vitest.config.ts
similarity index 100%
rename from vitest.config.js
rename to vitest.config.ts
diff --git a/yarn.lock b/yarn.lock
index 26abaac1..f1598f54 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1391,7 +1391,6 @@ __metadata:
     tsdown: "npm:0.22.0"
     typescript: "npm:6.0.3"
     typescript-eslint: "npm:8.59.4"
-    unrun: "npm:0.3.0"
     vitest: "npm:4.1.6"
   peerDependencies:
     "@angular/compiler": ">=21.0.7 || >= 21.2.0-0"
@@ -4353,22 +4352,6 @@ __metadata:
   languageName: node
   linkType: hard
 
-"unrun@npm:0.3.0":
-  version: 0.3.0
-  resolution: "unrun@npm:0.3.0"
-  dependencies:
-    rolldown: "npm:^1.0.0"
-  peerDependencies:
-    synckit: ^0.11.11
-  peerDependenciesMeta:
-    synckit:
-      optional: true
-  bin:
-    unrun: ./dist/cli.mjs
-  checksum: 10/6dc90f799787335ab8fc9fb3b604144c4dc131a9078ee50ec2de8317cef20566845f29403d92c9d801816b3d87e5ba45c36516abb96e3d249eb20f1f1f10633c
-  languageName: node
-  linkType: hard
-
 "update-browserslist-db@npm:^1.2.3":
   version: 1.2.3
   resolution: "update-browserslist-db@npm:1.2.3"