diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index c93eade7c..9a4f23824 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -28,7 +28,7 @@ jobs:
           sudo apt-get update
           sudo apt-get install mpich libhdf5-mpich-dev
           echo "JULIA_HDF5_PATH=/usr/lib/x86_64-linux-gnu/hdf5/mpich/" >> $GITHUB_ENV
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@latest
         with:
           version: ${{ matrix.version }}
@@ -74,7 +74,7 @@ jobs:
           - version: '1.6'
             os: windows-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@latest
         with:
           version: ${{ matrix.version }}
@@ -105,14 +105,14 @@ jobs:
           - {user: JuliaIO, repo: MAT.jl}
           - {user: JuliaIO, repo: JLD.jl}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@latest
         with:
           version: ${{ matrix.version }}
           arch: ${{ matrix.arch }}
       - uses: julia-actions/julia-buildpkg@latest
       - name: Clone ${{ matrix.package.repo }}
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           repository: ${{ matrix.package.user }}/${{ matrix.package.repo }}
           path: downstream
diff --git a/.github/workflows/Docs.yml b/.github/workflows/Docs.yml
index d8028c278..bfcc129fd 100644
--- a/.github/workflows/Docs.yml
+++ b/.github/workflows/Docs.yml
@@ -10,7 +10,7 @@ jobs:
   docs:
       runs-on: ubuntu-latest
       steps:
-        - uses: actions/checkout@v3
+        - uses: actions/checkout@v4
         - uses: julia-actions/julia-buildpkg@latest
         - uses: julia-actions/julia-docdeploy@latest
           env:
diff --git a/.github/workflows/Format-check.yml b/.github/workflows/Format-check.yml
index 08a2614c6..3a5ca7575 100644
--- a/.github/workflows/Format-check.yml
+++ b/.github/workflows/Format-check.yml
@@ -21,7 +21,7 @@ jobs:
         with:
           version: ${{ matrix.julia-version }}
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Install JuliaFormatter and format
         run: |
           julia -e 'using Pkg; Pkg.add(PackageSpec(name="JuliaFormatter"))'
diff --git a/.github/workflows/Invalidations.yml b/.github/workflows/Invalidations.yml
index 4d0004e83..28b9ce2fa 100644
--- a/.github/workflows/Invalidations.yml
+++ b/.github/workflows/Invalidations.yml
@@ -19,12 +19,12 @@ jobs:
     - uses: julia-actions/setup-julia@v1
       with:
         version: '1'
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: julia-actions/julia-buildpkg@v1
     - uses: julia-actions/julia-invalidations@v1
       id: invs_pr
 
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         ref: ${{ github.event.repository.default_branch }}
     - uses: julia-actions/julia-buildpkg@v1