diff --git a/.github/workflows/autofix.yaml b/.github/workflows/autofix.yaml
index a9d6483..f4fd211 100644
--- a/.github/workflows/autofix.yaml
+++ b/.github/workflows/autofix.yaml
@@ -11,7 +11,7 @@ jobs:
   autofix:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
       - uses: denoland/setup-deno@v2
       - run: deno fmt
       - run: deno lint --fix --quiet
diff --git a/.github/workflows/checks.yaml b/.github/workflows/checks.yaml
index 3a2af61..4214131 100644
--- a/.github/workflows/checks.yaml
+++ b/.github/workflows/checks.yaml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     name: format and lint
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
       - uses: denoland/setup-deno@v2
       - run: deno fmt --check
       - run: deno lint --quiet
@@ -22,7 +22,7 @@ jobs:
       checks: write
       pull-requests: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
         with:
           submodules: true
           token: ${{ secrets.INPUTS_PAT }}
diff --git a/.github/workflows/publish.yaml b/.github/workflows/publish.yaml
index e8bba69..31848e2 100644
--- a/.github/workflows/publish.yaml
+++ b/.github/workflows/publish.yaml
@@ -16,7 +16,7 @@ jobs:
   jsr:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
         with:
           ref: ${{ inputs.ref || github.ref }}
       - uses: denoland/setup-deno@v2
@@ -25,7 +25,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
         with:
           ref: ${{ inputs.ref || github.ref }}
       - uses: denoland/setup-deno@v2
diff --git a/.github/workflows/release.yaml b/.github/workflows/release.yaml
index c4b795b..959f698 100644
--- a/.github/workflows/release.yaml
+++ b/.github/workflows/release.yaml
@@ -28,7 +28,7 @@ jobs:
     outputs:
       version: ${{ steps.update-version.outputs.version }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
       - uses: denoland/setup-deno@v2
       - run: deno task update:version ${{ github.event.inputs.release-type }}
         id: update-version