diff --git a/build-constraints.yaml b/build-constraints.yaml
index bf26fabb..37de3728 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2122,6 +2122,9 @@ packages:
     "Braden Walters <vc@braden-walters.info> @meoblast001":
         - hakyll-sass
 
+    "Tony Day <tonyday567@gmail.com> @tonyday567":
+        - chart-unit
+
     # If you stop maintaining a package you can move it here.
     # It will then be disabled if it starts causing problems.
     # See https://github.com/fpco/stackage/issues/1056