diff --git a/.github/workflows/build-majestic.yml b/.github/workflows/build-majestic.yml
index 5d25824dc..a7a5174d7 100644
--- a/.github/workflows/build-majestic.yml
+++ b/.github/workflows/build-majestic.yml
@@ -162,6 +162,8 @@ jobs:
 
     - name: Setup Haskell
       uses: haskell/actions/setup@v1
+      with:
+        ghc-version: 8
 
     - name: Build & run testsuite
       working-directory: ./src/runtime/haskell