diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 930c4bd..a38474c 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -3,7 +3,7 @@ jobs:
     name: GHC ${{ matrix.ghc }} on ${{ matrix.os }}
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: mkdir artifact
       - uses: haskell/ghcup-setup@v1
         with:
@@ -51,13 +51,13 @@ jobs:
     name: Cabal
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - run: cabal check
   hlint:
     name: HLint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: haskell-actions/hlint-setup@v2
       - uses: haskell-actions/hlint-run@v2
         with:
@@ -66,14 +66,14 @@ jobs:
     name: Gild
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: tfausak/cabal-gild-setup-action@v2
       - run: cabal-gild --input github-release.cabal --mode check
   ormolu:
     name: Ormolu
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: haskell-actions/run-ormolu@v17
   release:
     env: