diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0f2cab1..d2a3bc4 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -33,7 +33,7 @@ jobs:
           - '3.14'
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v6
       with:
diff --git a/.github/workflows/supply-chain.yml b/.github/workflows/supply-chain.yml
index 7708d87..c214ef7 100644
--- a/.github/workflows/supply-chain.yml
+++ b/.github/workflows/supply-chain.yml
@@ -32,7 +32,7 @@ jobs:
           - '3.14'
 
     steps:
-    - uses: actions/checkout@v5
+    - uses: actions/checkout@v6
       with:
         # This enables supply chain review against only a selected
         # branch.  For those using the "Git-Flow" style of branching,