diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8e06f3c..b979ae5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -17,7 +17,7 @@ jobs:
       max-parallel: 5
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: conda-incubator/setup-miniconda@v3
       with:
         auto-update-conda: true
@@ -42,7 +42,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout source
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Set up Python
         uses: actions/setup-python@v5
         with: