diff --git a/.github/workflows/build-pdf.yml b/.github/workflows/build-pdf.yml
index 09801c7..0593b1b 100644
--- a/.github/workflows/build-pdf.yml
+++ b/.github/workflows/build-pdf.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Set up Git repository
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       # - name: Add black logo
       #   run: |
       #     sed 's/00D98F/1c1c1c/' assets/logo.svg >assets/logo-black.svg
diff --git a/.github/workflows/test-api.yml b/.github/workflows/test-api.yml
index 104b924..c5e23ab 100644
--- a/.github/workflows/test-api.yml
+++ b/.github/workflows/test-api.yml
@@ -14,7 +14,7 @@ jobs:
         python-version: [3.8]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v2
         with:
diff --git a/.github/workflows/test-vue.yml b/.github/workflows/test-vue.yml
index 855e81e..37b3feb 100644
--- a/.github/workflows/test-vue.yml
+++ b/.github/workflows/test-vue.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Setup yarn
         run: npm install -g yarn
       - name: Setup Nodejs with yarn caching