diff --git a/.github/workflows/Benchmarks.yml b/.github/workflows/Benchmarks.yml
index 736111387..6b2247fdc 100644
--- a/.github/workflows/Benchmarks.yml
+++ b/.github/workflows/Benchmarks.yml
@@ -34,7 +34,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ !github.event.pull_request.draft }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'
diff --git a/.github/workflows/CI-Julia-nightly.yml b/.github/workflows/CI-Julia-nightly.yml
index e389ed2e8..79b02246f 100644
--- a/.github/workflows/CI-Julia-nightly.yml
+++ b/.github/workflows/CI-Julia-nightly.yml
@@ -48,7 +48,7 @@ jobs:
           - 'Core'
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index a4307888d..7edabdb31 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -75,7 +75,7 @@ jobs:
             group: 'AutoDiff_Ext'
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/ChangeLogCheck.yml b/.github/workflows/ChangeLogCheck.yml
index 466e81793..d99dca988 100644
--- a/.github/workflows/ChangeLogCheck.yml
+++ b/.github/workflows/ChangeLogCheck.yml
@@ -16,7 +16,7 @@ jobs:
           skipLabels: 'Skip ChangeLog'
       
       # check whether the format of CHANGELOG.md is correct
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'
diff --git a/.github/workflows/CleanPreviewDoc.yml b/.github/workflows/CleanPreviewDoc.yml
index bf115de14..dad91e5b5 100644
--- a/.github/workflows/CleanPreviewDoc.yml
+++ b/.github/workflows/CleanPreviewDoc.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout gh-pages branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: gh-pages
       - name: Delete preview and history + push changes
diff --git a/.github/workflows/Code-Quality.yml b/.github/workflows/Code-Quality.yml
index b231d2b29..7b7c76485 100644
--- a/.github/workflows/Code-Quality.yml
+++ b/.github/workflows/Code-Quality.yml
@@ -48,7 +48,7 @@ jobs:
           - 'Code-Quality'
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/FormatCheck.yml b/.github/workflows/FormatCheck.yml
index dda62fa1c..e819e6a78 100644
--- a/.github/workflows/FormatCheck.yml
+++ b/.github/workflows/FormatCheck.yml
@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ !github.event.pull_request.draft }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'
diff --git a/.github/workflows/SpellCheck.yml b/.github/workflows/SpellCheck.yml
index 89d877cc5..a8873ef19 100644
--- a/.github/workflows/SpellCheck.yml
+++ b/.github/workflows/SpellCheck.yml
@@ -8,6 +8,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Actions Repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Check spelling
         uses: crate-ci/typos@v1.35.4
\ No newline at end of file
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index 222377e4b..d7ddeabbd 100644
--- a/.github/workflows/documentation.yml
+++ b/.github/workflows/documentation.yml
@@ -43,7 +43,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ !github.event.pull_request.draft }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'