diff --git a/build-constraints.yaml b/build-constraints.yaml
index f0896294..efcd471e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4841,6 +4841,7 @@ packages:
     "Marcellus Siegburg <marcellus.siegburg@gmail.com> @marcellussiegburg":
         - call-alloy
         - call-plantuml
+        - hgal
 
     "Rickard Andersson <gonz@severnatazvezda.com> @GoNZooo":
         - gotyno-hs < 0 # 1.1.0 compile fail https://github.com/commercialhaskell/stackage/issues/6766