diff --git a/build-constraints.yaml b/build-constraints.yaml
index 6d328f4e..63d8ef44 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2965,6 +2965,10 @@ packages:
         - lmdb
         - rdf
 
+    "Michael Swan <mswan@fastmail.com> @michael-swan":
+        - pcf-font
+        - pcf-font-embed
+
     "Iago Abal <iagoabal+stack@gmail.com>":
         - bv