diff --git a/.github/workflows/sandwich.yml b/.github/workflows/sandwich.yml
index b192fe7b..d03c5e5e 100644
--- a/.github/workflows/sandwich.yml
+++ b/.github/workflows/sandwich.yml
@@ -23,7 +23,7 @@ jobs:
         - "9.8.1"
 
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - uses: cachix/install-nix-action@v27
       if: runner.os != 'Windows'
@@ -128,7 +128,7 @@ jobs:
           yaml: "stack-9.8.1.yaml"
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - uses: cachix/install-nix-action@v27
       with: