diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index a276cbd..49acca5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -41,6 +41,11 @@ jobs:
     uses: taiki-e/github-actions/.github/workflows/msrv.yml@main
     with:
       event_name: ${{ github.event_name }}
+  test:
+    uses: taiki-e/github-actions/.github/workflows/test.yml@main
+    with:
+      doc-nightly-only: true
+      build-args: --depth 2 --features unstable
   tidy:
     uses: taiki-e/github-actions/.github/workflows/tidy.yml@main
     permissions:
@@ -48,36 +53,3 @@ jobs:
       pull-requests: write # for gh pr edit --add-assignee
       repository-projects: read # for gh pr edit --add-assignee
     secrets: inherit
-
-  test:
-    strategy:
-      fail-fast: false
-      matrix:
-        rust:
-          - stable
-          - beta
-          - nightly
-    runs-on: ubuntu-latest
-    timeout-minutes: 60
-    steps:
-      - uses: taiki-e/checkout-action@v1
-      - uses: taiki-e/github-actions/install-rust@main
-        with:
-          toolchain: ${{ matrix.rust }}
-      - uses: taiki-e/install-action@cargo-hack
-      - uses: taiki-e/install-action@cargo-minimal-versions
-      - run: cargo test --workspace --all-features --tests
-        if: (!startsWith(matrix.rust, 'nightly'))
-      - run: cargo test --workspace --all-features
-        if: startsWith(matrix.rust, 'nightly')
-      - run: cargo minimal-versions build --workspace --no-private --detach-path-deps=skip-exact --all-features
-      - run: cargo minimal-versions build --workspace --no-private --detach-path-deps=skip-exact --all-features --direct
-
-  features:
-    runs-on: ubuntu-latest
-    timeout-minutes: 60
-    steps:
-      - uses: taiki-e/checkout-action@v1
-      - uses: taiki-e/github-actions/install-rust@nightly
-      - uses: taiki-e/install-action@cargo-hack
-      - run: cargo hack build --workspace --no-private --feature-powerset --depth 2 --no-dev-deps --features unstable --ignore-unknown-features