diff --git a/.github/workflows/haskell.yml b/.github/workflows/haskell.yml
index 3f6fb26..2fe94eb 100644
--- a/.github/workflows/haskell.yml
+++ b/.github/workflows/haskell.yml
@@ -36,7 +36,7 @@ jobs:
       - uses: actions/checkout@v2
         if: github.event.action == 'opened' || github.event.action == 'synchronize' || github.event.ref == 'refs/heads/master'
 
-      - uses: haskell/actions/setup@v1
+      - uses: haskell/actions/setup@v1.2.1
         name: Setup Haskell
         id: setup-haskell-cabal
         with: