diff --git a/.github/workflows/haskell.yml b/.github/workflows/haskell.yml
index 3f2d33c1..3d8c993d 100644
--- a/.github/workflows/haskell.yml
+++ b/.github/workflows/haskell.yml
@@ -14,7 +14,7 @@ jobs:
         ghcver: ['9.4.5']
         include:
         - os: windows-latest
-          ghcver: '9.4.6'
+          ghcver: '9.0.2'
     runs-on: ${{ matrix.os }}
     container: ${{ matrix.container }}
     steps: