diff --git a/.github/workflows/cabal-in-nix-shell.yml b/.github/workflows/cabal-in-nix-shell.yml
index a04f6e1..0e0ca0e 100644
--- a/.github/workflows/cabal-in-nix-shell.yml
+++ b/.github/workflows/cabal-in-nix-shell.yml
@@ -30,6 +30,9 @@ jobs:
             ghc: ghc822
           - os: macos-14
             ghc: ghc844
+          - os: ubuntu-22.04
+          - os: ubuntu-20.04
+          - os: macos-13
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout