diff --git a/build-constraints.yaml b/build-constraints.yaml
index 99ae87dc..d38778fc 100644
--- a/build-constraints.yaml
+++ b/build-constraints.yaml
@@ -2320,6 +2320,9 @@ expected-test-failures:
 
     # https://github.com/fpco/stackage/issues/1070
     - parsers
+
+    # https://github.com/fpco/stackage/issues/1085
+    - zlib
 # end of expected-test-failures