diff --git a/.github/workflows/build-on-debian.yml b/.github/workflows/build-on-debian.yml
index a4be9a7..0dc41c2 100644
--- a/.github/workflows/build-on-debian.yml
+++ b/.github/workflows/build-on-debian.yml
@@ -5,7 +5,7 @@ jobs:
     runs-on: ubuntu-24.04
     strategy:
       matrix:
-        ghc: ['9.6', '9.4', '9.2']
+        ghc: ['9.6', '9.4', '9.2', '9.0']
     steps:
       - uses: actions/checkout@v4
       - uses: haskell-actions/setup@v2