diff --git a/build-constraints.yaml b/build-constraints.yaml
index 3e08893e..6a4c2d9e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1579,6 +1579,9 @@ packages:
         - docopt
         - pathwalk
 
+    "John Galt <jgalt@centromere.net> @centromere":
+        - cacophony
+
     "Stackage upper bounds":
         # https://github.com/fpco/stackage/issues/537
         - zlib < 0.6