--- map-syntax.cabal.orig	2018-04-03 20:48:24 UTC
+++ map-syntax.cabal
@@ -37,8 +37,8 @@ Library
     Data.Map.Syntax
 
   build-depends:
-    base                       >= 4.3 && < 4.12,
-    containers                 >= 0.3 && < 0.6,
+    base                       >= 4.3 && < 4.13,
+    containers                 >= 0.3 && < 0.7,
     mtl                        >= 2.0 && < 2.3
 
   ghc-options: -Wall -fwarn-tabs -funbox-strict-fields -fno-warn-unused-do-bind