diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 728f4a8..992537f 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -14,7 +14,7 @@ jobs:
   reuse-lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Run REUSE lint
         run: |
           docker run --rm --volume ${{ github.workspace }}:/data fsfe/reuse lint
@@ -40,7 +40,7 @@ jobs:
             arch: x64
             version: 1
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
@@ -66,7 +66,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 40
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
       - uses: julia-actions/cache@v2
       - uses: julia-actions/julia-buildpkg@v1