diff --git a/.github/workflows/ets-from-source.yml b/.github/workflows/ets-from-source.yml
index ae9cd9c8b..7c1edeedc 100644
--- a/.github/workflows/ets-from-source.yml
+++ b/.github/workflows/ets-from-source.yml
@@ -22,7 +22,7 @@ jobs:
     timeout-minutes: 20
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Qt dependencies
         uses: ./.github/actions/install-qt-support
         if: matrix.toolkit != 'wx'
diff --git a/.github/workflows/publish-on-pypi.yml b/.github/workflows/publish-on-pypi.yml
index e6c7fb33c..7f971d075 100644
--- a/.github/workflows/publish-on-pypi.yml
+++ b/.github/workflows/publish-on-pypi.yml
@@ -11,7 +11,7 @@ jobs:
 
     steps:
     - name: Check out the release commit
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
diff --git a/.github/workflows/run-style-checks.yml b/.github/workflows/run-style-checks.yml
index 20e30c33b..1a6d7cbcf 100644
--- a/.github/workflows/run-style-checks.yml
+++ b/.github/workflows/run-style-checks.yml
@@ -12,7 +12,7 @@ jobs:
     runs-on: ${{ matrix.os }}
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index 42f4e7e52..04fa786f4 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -27,7 +27,7 @@ jobs:
 
     steps:
     - name: Check out the target commit
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - name: Install Qt dependencies
       uses: ./.github/actions/install-qt-support
     - name: Set up Python ${{ matrix.python-version }}
@@ -61,7 +61,7 @@ jobs:
 
     steps:
     - name: Check out the target commit
-      uses: actions/checkout@v4
+      uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
       with:
diff --git a/.github/workflows/test-docs-with-edm.yml b/.github/workflows/test-docs-with-edm.yml
index 4c7023f47..3d2f92712 100644
--- a/.github/workflows/test-docs-with-edm.yml
+++ b/.github/workflows/test-docs-with-edm.yml
@@ -21,7 +21,7 @@ jobs:
     timeout-minutes: 20  # should be plenty, it's usually < 5
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Qt dependencies
         uses: ./.github/actions/install-qt-support
         if: matrix.toolkit != 'wx'
diff --git a/.github/workflows/test-with-edm.yml b/.github/workflows/test-with-edm.yml
index 839321450..a1af5efaf 100644
--- a/.github/workflows/test-with-edm.yml
+++ b/.github/workflows/test-with-edm.yml
@@ -22,7 +22,7 @@ jobs:
     timeout-minutes: 20  # should be plenty, it's usually < 5
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install Qt dependencies
         uses: ./.github/actions/install-qt-support
         if: matrix.toolkit != 'wx'