diff --git a/.github/workflows/docker-push.yml b/.github/workflows/docker-push.yml
index b505bd15..9e0dd790 100644
--- a/.github/workflows/docker-push.yml
+++ b/.github/workflows/docker-push.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3.1.0
 
       - name: Login to Docker Hub
         run: |
diff --git a/.github/workflows/python-app.yml b/.github/workflows/python-app.yml
index 3b5768ac..e8a1ed82 100644
--- a/.github/workflows/python-app.yml
+++ b/.github/workflows/python-app.yml
@@ -17,7 +17,7 @@ jobs:
     timeout-minutes: 11
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - name: Set up Python 3.7
       uses: actions/setup-python@v2
       with:
@@ -49,7 +49,7 @@ jobs:
       GITHUB_ACTION: true
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v2
       with:
diff --git a/.github/workflows/update-docs.yml b/.github/workflows/update-docs.yml
index 05f69a2d..e2487f21 100644
--- a/.github/workflows/update-docs.yml
+++ b/.github/workflows/update-docs.yml
@@ -13,7 +13,7 @@ jobs:
     timeout-minutes: 5
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v3.1.0
     - name: Set up Python 3.7
       uses: actions/setup-python@v2
       with: