diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index b615c02..2331476 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -22,7 +22,7 @@ jobs:
           - x64
           # - x86
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
@@ -39,7 +39,7 @@ jobs:
     name: Documentation
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: '1'
diff --git a/.github/workflows/YASG.yml b/.github/workflows/YASG.yml
index 4896c32..6f969b6 100644
--- a/.github/workflows/YASG.yml
+++ b/.github/workflows/YASG.yml
@@ -26,7 +26,7 @@ jobs:
       - uses: julia-actions/setup-julia@latest
         with:
           version: ${{ matrix.julia-version }}
-      - uses: actions/checkout@v1
+      - uses: actions/checkout@v4
       - name: Instantiate `format` environment and format
         run: |
           julia --project=format -e 'using Pkg; Pkg.instantiate()'
diff --git a/.github/workflows/docs-cleanup.yml b/.github/workflows/docs-cleanup.yml
index e345652..6b36927 100644
--- a/.github/workflows/docs-cleanup.yml
+++ b/.github/workflows/docs-cleanup.yml
@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout gh-pages branch
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
         with:
           ref: gh-pages
       - name: Delete preview and history + push changes