diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 30f4cfd..b1d0f27 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -20,7 +20,7 @@
           echo "Running on ${{ runner.os }}"
           echo "Branch: ${{ github.ref }}; repo: ${{ github.repository }}."
       - name: Fetch sources
-        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
+        uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633
       - name: Install Dart SDK
         uses: dart-lang/setup-dart@fedb1266e91cf51be2fdb382869461a434b920a3
         with: