diff --git a/build-constraints.yaml b/build-constraints.yaml
index 5a6c2893..af5f7da4 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2835,7 +2835,7 @@ packages:
         - massiv-io
 
     "Hans-Peter Deifel <hpd@hpdeifel.de> @hpdeifel":
-        {}
+        []
         # - hledger-iadd # https://github.com/fpco/stackage/issues/3473
 
     "Roy Levien <royl@aldaron.com> @orome":