diff --git a/.github/workflows/build-deb.yml b/.github/workflows/build-deb.yml
index 1672e96c..4599f672 100644
--- a/.github/workflows/build-deb.yml
+++ b/.github/workflows/build-deb.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-22.04
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: build
       uses: dawidd6/action-debian-package@v1.4.4
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index 5d47c0d8..e65948e2 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -18,7 +18,7 @@ jobs:
       LDFLAGS: -L/usr/local/opt/python@${python_version}/lib
       PKG_CONFIG_PATH: /usr/local/opt/libffi/lib/pkgconfig:/usr/local/opt/python@${python_version}/lib/pkgconfig:${PKG_CONFIG_PATH:-}
     steps:
-      - uses: actions/checkout@v3.2.0
+      - uses: actions/checkout@v4
         with:
           ref: ${{ github.event.pull_request.head.sha }}
       - name: Set up Python
diff --git a/.github/workflows/run-tests.yml b/.github/workflows/run-tests.yml
index b8f2e045..00199934 100644
--- a/.github/workflows/run-tests.yml
+++ b/.github/workflows/run-tests.yml
@@ -23,7 +23,7 @@ jobs:
         os: [macos-12, macos-13, ubuntu-20.04, ubuntu-22.04]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - name: Show environment
       run: |
diff --git a/.github/workflows/web.yml b/.github/workflows/web.yml
index 3c8a9e52..03720194 100644
--- a/.github/workflows/web.yml
+++ b/.github/workflows/web.yml
@@ -29,7 +29,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
       - name: Build page
         run: ./web/build.sh
       - name: Setup Pages