diff --git a/.github/workflows/build-docker-images.yml b/.github/workflows/build-docker-images.yml
index d4a7f0e..c83978c 100644
--- a/.github/workflows/build-docker-images.yml
+++ b/.github/workflows/build-docker-images.yml
@@ -15,7 +15,7 @@ jobs:
   deploy:
     runs-on: ubuntu-18.04
     steps:
-      - uses: actions/checkout@v2.3.4  # v2 does not have submodules option now
+      - uses: actions/checkout@v3.2.0  # v2 does not have submodules option now
 
       - name: Build images
         run: python3 build_docker_images.py | sh
diff --git a/.github/workflows/gh-pages.yml b/.github/workflows/gh-pages.yml
index b7bb714..06e0266 100644
--- a/.github/workflows/gh-pages.yml
+++ b/.github/workflows/gh-pages.yml
@@ -16,7 +16,7 @@ jobs:
   deploy:
     runs-on: ubuntu-18.04
     steps:
-      - uses: actions/checkout@v2.3.4  # v2 does not have submodules option now
+      - uses: actions/checkout@v3.2.0  # v2 does not have submodules option now
 
       - name: Build Doc
         run: python3 build_doc.py
diff --git a/.github/workflows/upload-pypi.yml b/.github/workflows/upload-pypi.yml
index 0aa7e76..d76ec50 100644
--- a/.github/workflows/upload-pypi.yml
+++ b/.github/workflows/upload-pypi.yml
@@ -11,7 +11,7 @@ jobs:
   deploy:
     runs-on: ubuntu-18.04
     steps:
-      - uses: actions/checkout@v2.3.4  # v2 does not have submodules option now
+      - uses: actions/checkout@v3.2.0  # v2 does not have submodules option now
       - uses: actions/setup-python@v2.2.2
         with:
           python-version: '3.8'