diff --git a/.github/workflows/black-fix.yml b/.github/workflows/black-fix.yml
index 444c463..4b7cf34 100644
--- a/.github/workflows/black-fix.yml
+++ b/.github/workflows/black-fix.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
       with:
         ref: ${{ github.head_ref }}
 
diff --git a/.github/workflows/python_publish.yml b/.github/workflows/python_publish.yml
index bc0d72d..1cb25ac 100644
--- a/.github/workflows/python_publish.yml
+++ b/.github/workflows/python_publish.yml
@@ -9,7 +9,7 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v1
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v5
       with:
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 377c085..048dfcd 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -22,7 +22,7 @@ jobs:
 
     steps:
       - name: Checkout repo
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v5
@@ -43,7 +43,7 @@ jobs:
     if: always()
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python
       uses: actions/setup-python@v5
       with: