diff --git a/.github/workflows/mkdocs.yml b/.github/workflows/mkdocs.yml
index 9725aa56..33282fcb 100644
--- a/.github/workflows/mkdocs.yml
+++ b/.github/workflows/mkdocs.yml
@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     concurrency: ci-${{ github.ref }}
     steps:
-      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
         with:
           submodules: "recursive"
           fetch-depth: 0       # Fetch all history for .GitInfo and .Lastmod
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index 7d8deb48..a4bc15b5 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -11,7 +11,7 @@ jobs:
   packages:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
       with:
         fetch-depth: 0
 
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 7a20c8ae..be5d81b2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -25,7 +25,7 @@ jobs:
       FORCE_COLOR: "1"
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
 
       - name: Install Conda environment with Micromamba
         uses: mamba-org/setup-micromamba@v1
@@ -65,7 +65,7 @@ jobs:
       PYTHONUNBUFFERED: "1"
       FORCE_COLOR: "1"
     steps:
-      - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
 
       - uses: mamba-org/setup-micromamba@v1
         with:
diff --git a/.github/workflows/update-lockfile.yaml b/.github/workflows/update-lockfile.yaml
index 770d443f..a95e021b 100644
--- a/.github/workflows/update-lockfile.yaml
+++ b/.github/workflows/update-lockfile.yaml
@@ -17,7 +17,7 @@ jobs:
         shell: bash -l {0}
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4
+    - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11 # v4
     - name: Install Micromamba
       uses: mamba-org/setup-micromamba@v1
       with: