diff --git a/build-constraints.yaml b/build-constraints.yaml
index f62f6feb..8c114f6c 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -398,6 +398,7 @@ packages:
     "Tom McLaughlin <tom@codedown.io> @thomasjm":
         - aeson-typescript
         - fsnotify
+        - myers-diff
         - sandwich
         - sandwich-hedgehog
         - sandwich-quickcheck