diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 76f2b27..f3457d2 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -9,7 +9,7 @@ jobs:
   publish:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v1
         with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index d9a4544..199db4e 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v1
         with:
diff --git a/.github/workflows/test_full.yml b/.github/workflows/test_full.yml
index f860c95..73a7ea6 100644
--- a/.github/workflows/test_full.yml
+++ b/.github/workflows/test_full.yml
@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v1
         with:
@@ -36,7 +36,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Set up Python
         uses: actions/setup-python@v1
         with: