@@ -48,7 +48,7 @@ library
4848 blaze-builder,
4949 bytestring == 0.10.*,
5050 containers == 0.5.*,
51− constraints == 0.9.*,
51+ constraints >= 0.9 && < 0.11,
5252 contravariant >= 1.4 && < 1.5,
5353 data-default >= 0.5 && < 0.8,
5454 dependent-map == 0.2.*,