diff --git a/build-constraints.yaml b/build-constraints.yaml
index 730b50d4..2c9b6561 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -3666,7 +3666,7 @@ packages:
         - viewprof
 
     "Dylan Simon <dylan-stack@dylex.net> @dylex":
-        - postgresql-typed
+        - postgresql-typed < 0 # https://github.com/dylex/postgresql-typed/issues/30
         - invertible
         - ztail
         - zip-stream