diff --git a/.github/workflows/lint-test.yaml b/.github/workflows/lint-test.yaml
index 3df8c3e5f6..db9da00c43 100644
--- a/.github/workflows/lint-test.yaml
+++ b/.github/workflows/lint-test.yaml
@@ -19,7 +19,7 @@ jobs:
       # Python is required because `ct lint` runs Yamale (https://github.com/23andMe/Yamale) and
       # yamllint (https://github.com/adrienverge/yamllint) which require Python
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4.2.0
         with:
           python-version: 3.7
 
diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
index 9e351326a0..d3278c8fc4 100644
--- a/.github/workflows/lint.yml
+++ b/.github/workflows/lint.yml
@@ -17,7 +17,7 @@ jobs:
           fetch-depth: 1
 
       - name: Set up Python
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v4.2.0
         with:
           python-version: 3.9
           architecture: x64
diff --git a/.github/workflows/mkdocs.yml b/.github/workflows/mkdocs.yml
index 0efd8fa3c2..0d0c333a21 100644
--- a/.github/workflows/mkdocs.yml
+++ b/.github/workflows/mkdocs.yml
@@ -20,7 +20,7 @@ jobs:
           fetch-depth: 1
 
       - name: Setup Python 3.9
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v4.2.0
         with:
           python-version: '3.9'
           architecture: x64