diff --git a/build-constraints.yaml b/build-constraints.yaml
index e6f82dd5..0a5aac38 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -42,7 +42,7 @@ packages:
         - modular
 
     "Erik Schnetter <schnetter@gmail.com> @eschnett":
-        - mpi-hs
+        - mpi-hs < 0 # https://github.com/commercialhaskell/stackage/issues/4068
 
     "Yang Bo <pop.atry@gmail.com> @Atry":
         - control-dsl