diff --git a/.github/workflows/check-style-strict.yml b/.github/workflows/check-style-strict.yml
index bce23c77..4fd4252b 100644
--- a/.github/workflows/check-style-strict.yml
+++ b/.github/workflows/check-style-strict.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: 'ubuntu-latest'
 
     steps:
-    - uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+    - uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
     - uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with:
         python-version: '3.12'
diff --git a/.github/workflows/ets-from-source.yml b/.github/workflows/ets-from-source.yml
index 7dce82e1..46e1262e 100644
--- a/.github/workflows/ets-from-source.yml
+++ b/.github/workflows/ets-from-source.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout the target commit
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Set up bootstrap Python (3.10)
         uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
diff --git a/.github/workflows/publish-on-pypi.yml b/.github/workflows/publish-on-pypi.yml
index ee641ad0..d5279d1d 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@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
     - name: Set up Python
       uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with:
diff --git a/.github/workflows/test-minimal-dependencies.yml b/.github/workflows/test-minimal-dependencies.yml
index 430bc5c2..b6c5e84d 100644
--- a/.github/workflows/test-minimal-dependencies.yml
+++ b/.github/workflows/test-minimal-dependencies.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
     - name: Get apptools source
-      uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with:
diff --git a/.github/workflows/test-with-edm.yml b/.github/workflows/test-with-edm.yml
index b3e61465..8d5dd496 100644
--- a/.github/workflows/test-with-edm.yml
+++ b/.github/workflows/test-with-edm.yml
@@ -21,7 +21,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout the target commit
-        uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
       - name: Set up bootstrap Python (3.10)
         uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
         with:
diff --git a/.github/workflows/test-with-pip.yml b/.github/workflows/test-with-pip.yml
index f8ed9931..6f99baeb 100644
--- a/.github/workflows/test-with-pip.yml
+++ b/.github/workflows/test-with-pip.yml
@@ -15,7 +15,7 @@ jobs:
 
     steps:
     - name: Get apptools source
-      uses: actions/checkout@df4cb1c069e1874edd31b4311f1884172cec0e10 # v6.0.3
+      uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@ece7cb06caefa5fff74198d8649806c4678c61a1 # v6.3.0
       with: