diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 02b5494d..5adfa4c8 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -41,7 +41,7 @@ jobs:
     env:
       PYTHON: ""
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/Documenter.yml b/.github/workflows/Documenter.yml
index 131ea8e4..403c8fa2 100644
--- a/.github/workflows/Documenter.yml
+++ b/.github/workflows/Documenter.yml
@@ -15,7 +15,7 @@ jobs:
         with:
           version: 'lts'
           show-versioninfo: true         # print versioninfo in the action log
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/julia-buildpkg@latest
       - uses: julia-actions/julia-docdeploy@latest
         env:
diff --git a/.github/workflows/check_builtins.yml b/.github/workflows/check_builtins.yml
index 88ad8683..149fdb55 100644
--- a/.github/workflows/check_builtins.yml
+++ b/.github/workflows/check_builtins.yml
@@ -10,7 +10,7 @@ jobs:
     name: 'Check builtins.jl consistency'
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: nightly