diff --git a/build-constraints.yaml b/build-constraints.yaml
index 89050a44..3459e72d 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -5618,6 +5618,7 @@ packages:
         - parallel-io
         - path-pieces
         - pcg-random
+        - pdc
         - peggy
         - pipes-bytestring
         - pipes-group