diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 87addf31c..b30a789a5 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -8,11 +8,11 @@ jobs:
     name: Build docs
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
+      - uses: actions/checkout@v3.0.0
+      - uses: actions/setup-python@v4.0.0
         with:
           python-version: 3.x
-      - uses: actions/cache@v3
+      - uses: actions/cache@v3.0.0
         with:
           key: ${{ github.ref }}
           path: .cache
@@ -25,13 +25,13 @@ jobs:
     name: Deploy docs
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v3.0.0
         with:
           fetch-depth: '0'
-      - uses: actions/setup-python@v4
+      - uses: actions/setup-python@v4.0.0
         with:
           python-version: 3.x
-      - uses: actions/cache@v3
+      - uses: actions/cache@v3.0.0
         with:
           key: ${{ github.ref }}
           path: .cache
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 8567269ab..08ea0b97b 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -7,7 +7,7 @@ jobs:
   editorconfig-checker:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v3.0.0
       - name: editorconfig-checker
         run: |
           docker run --rm \
@@ -17,7 +17,7 @@ jobs:
   markdownlint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v3.0.0
       - name: markdownlint
         run: |
           find "${GITHUB_WORKSPACE}" -name '*.md' -exec \
@@ -30,7 +30,7 @@ jobs:
   yamllint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v3.0.0
       - name: yamllint
         run: |
           find "${GITHUB_WORKSPACE}" -name '*.yaml' -o -name '*.yml' -exec \
diff --git a/.github/workflows/metadata-validation.yml b/.github/workflows/metadata-validation.yml
index 88546450d..f37a27683 100644
--- a/.github/workflows/metadata-validation.yml
+++ b/.github/workflows/metadata-validation.yml
@@ -17,8 +17,8 @@ jobs:
     runs-on: ubuntu-latest
     name: Validate metadata.json
     steps:
-      - uses: actions/checkout@v3
-      - uses: actions/setup-python@v4
+      - uses: actions/checkout@v3.0.0
+      - uses: actions/setup-python@v4.0.0
         with:
           python-version: "3.x"
       - run: pip install jsonschema