diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index b4e72ee..d1f81c3 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -64,7 +64,7 @@ jobs:
             ghc: 8.8.4
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
 
     - uses: haskell-actions/setup@v2
       id: setup-haskell-cabal