diff --git a/build-constraints.yaml b/build-constraints.yaml
index 9982e288..28726795 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1660,6 +1660,9 @@ packages:
 
     "yihuang <yi.codeplayer@gmail.com> @yihuang":
         - tagstream-conduit
+        
+    "Joe Hermaszewski <stackage@monoid.al> @expipiplus1":
+        - exact-real
 
     "Stackage upper bounds":
         # https://github.com/fpco/stackage/issues/537