diff --git a/build-constraints.yaml b/build-constraints.yaml
index 02a0a175..e47c617a 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -4624,6 +4624,10 @@ packages:
 
         # https://github.com/commercialhaskell/stackage/issues/4569
         - cryptonite < 0.26
+
+        # https://github.com/commercialhaskell/stackage/issues/4570
+        - xml-conduit < 1.9
+
 # end of packages
 
 # Package flags are applied to individual packages, and override the values of