diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 03d977823..bd75fcbd0 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -23,7 +23,7 @@ jobs:
         arch:
           - x64
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: julia-actions/setup-julia@v1
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/Documenter.yml b/.github/workflows/Documenter.yml
index d7de91b2c..9a8b5fcb1 100644
--- a/.github/workflows/Documenter.yml
+++ b/.github/workflows/Documenter.yml
@@ -10,7 +10,7 @@ jobs:
       name: Documentation
       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/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