diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 93b602b..f48ba38 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -19,7 +19,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+        uses: actions/checkout@3df4ab11eba7bda6032a0b82a6bb43b11571feac # v4.0.0
 
       - name: Set up Nix
         uses: cachix/install-nix-action@6ed004b9ccb68dbc28e7c85bee15fa93dbd214ac # v22