diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d62268b..33e0bf0 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -15,7 +15,7 @@ jobs:
     container: condaforge/mambaforge:latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5.0.0
 
     - name: Run CI
       # Ensure the step runs under bash so `pipefail` is supported in the shell flags