@@ -918,6 +918,9 @@ packages:
918918 # https://github.com/fpco/stackage/issues/531
919919 - sbv < 4.3
920920
921+ # https://github.com/fpco/stackage/issues/537
922+ - zlib < 0.6
923+
921924# Package flags are applied to individual packages, and override the values of
922925# global-flags
923926package-flags: