diff --git a/.github/workflows/markdownlint.yml b/.github/workflows/markdownlint.yml
index 7f25081c..050a1856 100644
--- a/.github/workflows/markdownlint.yml
+++ b/.github/workflows/markdownlint.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-26.04
     steps:
       - name: Checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1
 
       - name: Run markdownlint
         uses: DavidAnson/markdownlint-cli2-action@ded1f9488f68a970bc66ea5619e13e9b52e601cd
diff --git a/.github/workflows/shellcheck.yml b/.github/workflows/shellcheck.yml
index 87160c92..9ef98f4c 100644
--- a/.github/workflows/shellcheck.yml
+++ b/.github/workflows/shellcheck.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-26.04
     steps:
       - name: Checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1
 
       - name: Run shellcheck
         uses: ludeeus/action-shellcheck@00cae500b08a931fb5698e11e79bfbd38e612a38
diff --git a/.github/workflows/test-runner.yml b/.github/workflows/test-runner.yml
index 35076677..7e6831a5 100644
--- a/.github/workflows/test-runner.yml
+++ b/.github/workflows/test-runner.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout code
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
+        uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1
       - run: docker pull exercism/zig-test-runner
       - name: Run tests for all exercises
         run: sh ./bin/test
diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index d4db75ca..51a59dad 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@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
+    - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1
 
     - name: Install Zig
       uses: mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29
diff --git a/.github/workflows/zig-fmt.yml b/.github/workflows/zig-fmt.yml
index 9fd9b604..4a63d96a 100644
--- a/.github/workflows/zig-fmt.yml
+++ b/.github/workflows/zig-fmt.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-26.04
     steps:
     - name: Checkout
-      uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0
+      uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1
 
     - name: Install Zig
       uses: mlugg/setup-zig@d1434d08867e3ee9daa34448df10607b98908d29