diff --git a/.github/workflows/markdownlint.yml b/.github/workflows/markdownlint.yml
index a63da275..9feaa481 100644
--- a/.github/workflows/markdownlint.yml
+++ b/.github/workflows/markdownlint.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
 
       - name: Run markdownlint
         uses: DavidAnson/markdownlint-cli2-action@b4c9feab76d8025d1e83c653fa3990936df0e6c8
diff --git a/.github/workflows/shellcheck.yml b/.github/workflows/shellcheck.yml
index f4635c70..73503b4c 100644
--- a/.github/workflows/shellcheck.yml
+++ b/.github/workflows/shellcheck.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
       - name: Checkout
-        uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
+        uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
 
       - name: Run shellcheck
         uses: ludeeus/action-shellcheck@00cae500b08a931fb5698e11e79bfbd38e612a38
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index e565fc55..2291a0db 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -14,7 +14,7 @@ jobs:
     name: Check exercises (${{ matrix.os }})
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
+    - uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
 
     - name: Install Zig
       shell: bash
diff --git a/.github/workflows/zig-fmt.yml b/.github/workflows/zig-fmt.yml
index d05df47b..a1416610 100644
--- a/.github/workflows/zig-fmt.yml
+++ b/.github/workflows/zig-fmt.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-22.04
     steps:
     - name: Checkout
-      uses: actions/checkout@0ad4b8fadaa221de15dcec353f45205ec38ea70b
+      uses: actions/checkout@a5ac7e51b41094c92402da3b24376905380afc29
 
     - name: Install Zig
       run: ./.github/bin/install-zig