diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 8588d17..e21ebd4 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.1.0
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 1df33a6..8af0bb3 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.1.0
         with:
           fetch-depth: 0
 
diff --git a/.github/workflows/sync-readme.yml b/.github/workflows/sync-readme.yml
index 4262429..c13a3dc 100644
--- a/.github/workflows/sync-readme.yml
+++ b/.github/workflows/sync-readme.yml
@@ -13,14 +13,14 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.1.0
 
       - name: Copy README
         run: |
           cp -f README.md ${{ runner.temp }}/README.md
 
       - name: Checkout GitHub Pages branch
-        uses: actions/checkout@v2
+        uses: actions/checkout@v3.1.0
         with:
           ref: gh-pages