diff --git a/build-constraints.yaml b/build-constraints.yaml
index 8bf379c7..bb8d92fd 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -528,6 +528,7 @@ packages:
 
     "Vanessa McHale <vmchale@gmail.com> @vmchale":
         - bz2
+        - bzip2-clib # needed by bz2
 
     "Henning Thielemann <stackage@henning-thielemann.de> @thielema":
         - accelerate-arithmetic