diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index bd8abf36..ae5e6a3f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: rustup
         uses: dtolnay/rust-toolchain@stable
         with:
@@ -18,7 +18,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
     steps:
       - name: checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: rustup
         uses: dtolnay/rust-toolchain@stable
       - run: cargo test --all-targets
@@ -29,7 +29,7 @@ jobs:
     runs-on: ${{ matrix.platform }}
     steps:
       - name: checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: rustup
         uses: dtolnay/rust-toolchain@stable
         with: