diff --git a/build-constraints.yaml b/build-constraints.yaml
index 4138a5b4..ea1c8c66 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4754,6 +4754,7 @@ packages:
         - wai-middleware-delegate
 
     "Francisco Vallarino <fjvallarino@gmail.com> @fjvallarino":
+        - monomer
         - nanovg
 
     "Grandfathered dependencies":