diff --git a/build-constraints.yaml b/build-constraints.yaml
index 033a14c3..2c29045e 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4664,7 +4664,6 @@ packages:
         - persistable-types-HDBC-pg < 0 # via HDBC
         - persistent-pagination < 0 # via persistent
         - persistent-typed-db < 0 # via persistent
-        - pg-harness-client
         - pg-harness-server < 0 # via scotty
         - pg-transact < 0 # via tmp-postgres
         - pinboard < 0 # via time-1.9.3