diff --git a/build-constraints.yaml b/build-constraints.yaml
index 99477ea6..1920d11d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3811,7 +3811,7 @@ packages:
         - servant-exceptions < 0 # https://github.com/ch1bo/servant-exceptions/issues/9
 
     "Vaibhav Sagar <vaibhavsagar@gmail.com> @vaibhavsagar":
-        - ihaskell
+        - ihaskell < 0 # https://github.com/commercialhaskell/stackage/pull/5354
         - ghc-parser
 
     "Alexis Williams <alexis@typedr.at> @typedrat":