diff --git a/build-constraints.yaml b/build-constraints.yaml
index 37a7ba2b..5eee5e5a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2237,6 +2237,9 @@ packages:
         - exact-pi
         - numtype-dk
 
+    "Cliff Harvey <cs.hbar+hs@gmail.com>":
+        - ansigraph
+
     # 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