diff --git a/.github/workflows/haskell.yml b/.github/workflows/haskell.yml
index f398b21..4db0972 100644
--- a/.github/workflows/haskell.yml
+++ b/.github/workflows/haskell.yml
@@ -31,7 +31,7 @@ jobs:
           stack-version: 'latest'
       - name: Stack build and test
         run: |
-          stack build
+          stack build --system-ghc --no-install-ghc
           stack test
 
   # ci: