diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 00e6933..b1db064 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -22,7 +22,7 @@ jobs:
       matrix:
         python-version: ["3.10", "3.11", "3.12", "3.13"]
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v5
@@ -42,7 +42,7 @@ jobs:
     name: build (sdist + wheel)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: "3.12"
diff --git a/.github/workflows/publish.yml b/.github/workflows/publish.yml
index 8380524..122630e 100644
--- a/.github/workflows/publish.yml
+++ b/.github/workflows/publish.yml
@@ -12,7 +12,7 @@ jobs:
     name: Build distributions
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: actions/setup-python@v5
         with:
           python-version: "3.12"