diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c3a1485..1522988 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -14,7 +14,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
 
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v4
         with:
           python-version: 3.9
 
diff --git a/.github/workflows/doc.yml b/.github/workflows/doc.yml
index f27242c..1efa196 100644
--- a/.github/workflows/doc.yml
+++ b/.github/workflows/doc.yml
@@ -12,7 +12,7 @@ jobs:
       - name: Checkout main
         uses: actions/checkout@v2
 
-      - uses: actions/setup-python@v2
+      - uses: actions/setup-python@v4
         with:
           python-version: 3.9