diff --git a/these.cabal b/these.cabal
index 5565a83..fa6b131 100644
--- a/these.cabal
+++ b/these.cabal
@@ -1,5 +1,5 @@
 Name:                these
-Version:             0.4.2
+Version:             0.5.0.0
 Synopsis:            An either-or-both data type, with corresponding hybrid error/writer monad transformer.
 Homepage:            https://github.com/isomorphism/these
 License:             BSD3
@@ -18,11 +18,11 @@ Library
                        Control.Monad.Trans.Chronicle
   Build-depends:       base          >= 3   && < 5,
                        containers    >= 0.4 && < 0.6,
-                       mtl           >= 2   && < 2.2,
-                       transformers  >= 0.2 && < 0.4,
-                       semigroups    >= 0.8 && < 0.14,
-                       bifunctors    >= 0.1 && < 4.2,
-                       semigroupoids >= 1.0 && < 4.1,
-                       profunctors   >= 3   && < 4.1,
+                       mtl           >= 2   && < 2.3,
+                       transformers  >= 0.2 && < 0.5,
+                       semigroups    >= 0.8 && < 0.17,
+                       bifunctors    >= 0.1 && < 4.3,
+                       semigroupoids >= 1.0 && < 4.4,
+                       profunctors   >= 3   && < 4.4,
                        vector        >= 0.4 && < 0.11