diff --git a/build-constraints.yaml b/build-constraints.yaml
index 271a7796..26e47782 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -940,7 +940,7 @@ packages:
         - diagrams-svg
         - force-layout
         - SVGFonts
-        - haxr < 0 # GHC 8.4 via HaXml
+        - haxr
         - MonadRandom
         - monoid-extras