diff --git a/.github/workflows/coverage.yml b/.github/workflows/coverage.yml
index 6e2496c..4b36cf6 100644
--- a/.github/workflows/coverage.yml
+++ b/.github/workflows/coverage.yml
@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.3
 
       - name: Set up steps
         uses: ./.github/actions/setup-steps
diff --git a/.github/workflows/e2e.yml b/.github/workflows/e2e.yml
index 566fdd3..b111203 100644
--- a/.github/workflows/e2e.yml
+++ b/.github/workflows/e2e.yml
@@ -19,7 +19,7 @@ jobs:
         with:
           access_token: ${{ github.token }}
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.3
 
       - name: Set up steps
         uses: ./.github/actions/setup-steps
diff --git a/.github/workflows/lint-typescript.yml b/.github/workflows/lint-typescript.yml
index 6c2459b..6cb5600 100644
--- a/.github/workflows/lint-typescript.yml
+++ b/.github/workflows/lint-typescript.yml
@@ -16,7 +16,7 @@ jobs:
         with:
           access_token: ${{ github.token }}
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.3
 
       - name: Set up steps
         uses: ./.github/actions/setup-steps
diff --git a/.github/workflows/unit.yml b/.github/workflows/unit.yml
index e7c18bb..7b5170b 100644
--- a/.github/workflows/unit.yml
+++ b/.github/workflows/unit.yml
@@ -16,7 +16,7 @@ jobs:
         with:
           access_token: ${{ github.token }}
 
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v6.0.3
 
       - name: Set up steps
         uses: ./.github/actions/setup-steps