diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b5fb27f..5cbf034 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -59,7 +59,7 @@ jobs:
             ghc: 8.2.2
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
 
     - uses: haskell/actions/setup@v2
       id: setup-haskell-cabal