diff --git a/build-constraints.yaml b/build-constraints.yaml
index bc4878ed..82447ac9 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2760,7 +2760,7 @@ packages:
         - repline
         - picosat
         - aos-signature
-        - bulletproofs
+        - bulletproofs < 0 # not published to Hackage yet (11 Nov. 18)
         - pedersen-commitment
         - merkle-tree