diff --git a/.github/workflows/release_to_pypi.yml b/.github/workflows/release_to_pypi.yml
index 5abc59c6..dfe49ed4 100644
--- a/.github/workflows/release_to_pypi.yml
+++ b/.github/workflows/release_to_pypi.yml
@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout source
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: Set up Python
         uses: actions/setup-python@v6
diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 7d20d85a..005e2bfd 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -37,7 +37,7 @@ jobs:
 
     steps:
       - name: checkout repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
 
       - name: setup micromamba
         uses: mamba-org/setup-micromamba@v2