diff --git a/build-constraints.yaml b/build-constraints.yaml
index 440f9a84..172c8b48 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -7,6 +7,9 @@ cabal-format-version: "2.0"
 
 # Constraints for brand new builds
 packages:
+    "Iris Ward <aditu.venyhandottir@gmail.com> @AdituV":
+        - typenums
+
     "Jude Taylor <me@jude.xyz> @pikajude":
         - th-printf