diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 7821a255..a011738a 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -29,7 +29,7 @@ jobs:
       contents: read
     steps:
       - name: checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.2
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/pr-outputs-test.yaml b/.github/workflows/pr-outputs-test.yaml
index c8fd6068..5843faa6 100644
--- a/.github/workflows/pr-outputs-test.yaml
+++ b/.github/workflows/pr-outputs-test.yaml
@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.2
         with:
           fetch-depth: 0
           persist-credentials: false
@@ -173,7 +173,7 @@ jobs:
       contents: read
     steps:
       - name: checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.2
         with:
           fetch-depth: 0
           persist-credentials: false
diff --git a/.github/workflows/pr-outputs-workflow-call-reusable.yaml b/.github/workflows/pr-outputs-workflow-call-reusable.yaml
index 10823a52..6b8bba80 100644
--- a/.github/workflows/pr-outputs-workflow-call-reusable.yaml
+++ b/.github/workflows/pr-outputs-workflow-call-reusable.yaml
@@ -46,7 +46,7 @@ jobs:
       pr-number: ${{ steps.context.outputs.pr-number }}
     steps:
       - name: checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v6.0.2
         with:
           fetch-depth: 0
           persist-credentials: false