diff --git a/.github/workflows/Benchmarks.yml b/.github/workflows/Benchmarks.yml
index ea58818..d59be00 100644
--- a/.github/workflows/Benchmarks.yml
+++ b/.github/workflows/Benchmarks.yml
@@ -35,7 +35,7 @@ jobs:
     runs-on: ubuntu-latest
     if: ${{ !github.event.pull_request.draft }}
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v5.0.1
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'
diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index e2c9de3..b93af23 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -54,7 +54,7 @@ jobs:
               arch: 'x64'
             group: 'CUDA'
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v5.0.1
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
@@ -80,7 +80,7 @@ jobs:
       contents: write
       statuses: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v5.0.1
       - uses: julia-actions/setup-julia@v2
         with:
           version: '1'
diff --git a/.github/workflows/Code-Quality.yml b/.github/workflows/Code-Quality.yml
index 1694a4e..ad14b91 100644
--- a/.github/workflows/Code-Quality.yml
+++ b/.github/workflows/Code-Quality.yml
@@ -49,7 +49,7 @@ jobs:
           - 'Code-Quality'
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v5.0.1
       - uses: julia-actions/setup-julia@v2
         with:
           version: ${{ matrix.version }}
diff --git a/.github/workflows/gemini-review.yml b/.github/workflows/gemini-review.yml
index cb88e2d..759009e 100644
--- a/.github/workflows/gemini-review.yml
+++ b/.github/workflows/gemini-review.yml
@@ -39,7 +39,7 @@ jobs:
           permission-pull-requests: 'write'
 
       - name: 'Checkout repository'
-        uses: 'actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8' # ratchet:actions/checkout@v5
+        uses: 'actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd' # ratchet:actions/checkout@v5
 
       - name: 'Run Gemini pull request review'
         uses: 'google-github-actions/run-gemini-cli@v0' # ratchet:exclude