diff --git a/.github/workflows/Benchmarks.yml b/.github/workflows/Benchmarks.yml
index 988357988..6b1b1e39c 100644
--- a/.github/workflows/Benchmarks.yml
+++ b/.github/workflows/Benchmarks.yml
@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ !github.event.pull_request.draft }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1.11'
diff --git a/.github/workflows/CI-Julia-nightly.yml b/.github/workflows/CI-Julia-nightly.yml
index 79b02246f..716ce7c1b 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@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 03b78bb69..98895951c 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -80,7 +80,7 @@ jobs:
             group: 'Arbitrary-Precision'
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/ChangeLogCheck.yml b/.github/workflows/ChangeLogCheck.yml
index d99dca988..ebd800b91 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@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'
diff --git a/.github/workflows/CleanPreviewDoc.yml b/.github/workflows/CleanPreviewDoc.yml
index bc5d8d8ce..218afa473 100644
--- a/.github/workflows/CleanPreviewDoc.yml
+++ b/.github/workflows/CleanPreviewDoc.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout gh-pages branch
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: gh-pages
       - name: Delete preview(s) and reset history
diff --git a/.github/workflows/Code-Quality.yml b/.github/workflows/Code-Quality.yml
index 8bd92249f..ada8ca999 100644
--- a/.github/workflows/Code-Quality.yml
+++ b/.github/workflows/Code-Quality.yml
@@ -49,7 +49,7 @@ jobs:
           - 'Code-Quality'
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/FormatCheck.yml b/.github/workflows/FormatCheck.yml
index e819e6a78..7ffdbeca9 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@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'
diff --git a/.github/workflows/SpellCheck.yml b/.github/workflows/SpellCheck.yml
index fbe220970..cf7ced07d 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@v5
+        uses: actions/checkout@v6
       - name: Check spelling
         uses: crate-ci/typos@v1.39.0
\ No newline at end of file
diff --git a/.github/workflows/documentation.yml b/.github/workflows/documentation.yml
index f58d318a0..1a4ff6d70 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@v5
+      - uses: actions/checkout@v6
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1.11'