diff --git a/build-constraints.yaml b/build-constraints.yaml
index ab065b64..587f3b60 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4172,7 +4172,7 @@ packages:
         - minimal-configuration
 
     "Davit Nalchevanidze <d.nalchevanidze@gmail.com> @nalchevanidze":
-        - morpheus-graphql
+        - morpheus-graphql < 0.12 # https://github.com/commercialhaskell/stackage/issues/5385
 
     "Satoshi Egi <egi@egison.org> @egisatoshi":
         - egison