diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6e9c08d..ce77536 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -26,7 +26,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 7e21180..cd6a21e 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -10,7 +10,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: '1'
diff --git a/.github/workflows/format.yml b/.github/workflows/format.yml
index 2e916e8..0baf023 100644
--- a/.github/workflows/format.yml
+++ b/.github/workflows/format.yml
@@ -15,7 +15,7 @@ jobs:
       - uses: julia-actions/setup-julia@v1
         with:
           version: '1'
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Install JuliaFormatter and format
         run: |
           julia  -e 'using Pkg; Pkg.add(PackageSpec(name="JuliaFormatter", version="1.0.9"))'