diff --git a/build-constraints.yaml b/build-constraints.yaml
index b1d77207..99699be0 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -1928,6 +1928,7 @@ skipped-tests:
     # https://github.com/fpco/stackage/issues/1045
     - argon
     - clock
+    - pipes-cacophony
 # end of skipped-tests
 
 # Tests which we should build and run, but which are expected to fail. We