diff --git a/.github/workflows/haskell.yml b/.github/workflows/haskell.yml
index ca9a410d57..4bedf86bb2 100644
--- a/.github/workflows/haskell.yml
+++ b/.github/workflows/haskell.yml
@@ -95,6 +95,16 @@ jobs:
             cabal_project: cabal.project.ghc-head
             disable_sdist_build: "y"
             ignore_error: true
+          - name: 9.12.1-alpha
+            ghc_version: head
+            ghcup_ghc_options: "-u https://downloads.haskell.org/ghc/9.12.1-alpha1/ghc-9.12.20241014-x86_64-deb12-linux.tar.xz"
+            runner: ubuntu-latest
+            build: cabal
+            cabal_build_options: "--flag limit-build-mem"
+            cabal_version: 3.12.1.0
+            cabal_project: cabal.project
+            disable_sdist_build: "y"
+            ignore_error: false
           # Note: use linux for warning build for convenient dev testing
           - name: 9.10.1-Werror
             ghc_version: 9.10.1