diff --git a/regions-mtl.cabal b/regions-mtl.cabal
--- a/regions-mtl.cabal
+++ b/regions-mtl.cabal
@@ -1,5 +1,5 @@
 name:          regions-mtl
-version:       0.3.1.6
+version:       0.3.1.7
 cabal-version: >=1.6
 build-type:    Simple
 license:       BSD3
@@ -21,5 +21,5 @@
   GHC-Options: -Wall -fno-warn-orphans
   build-depends: base-unicode-symbols >= 0.1.1 && < 0.3
                , mtl                  >= 2.0   && < 2.1
-               , regions              >= 0.4   && < 0.11
+               , regions              >= 0.4   && < 0.12
   exposed-modules: Control.Monad.Trans.Region.Instances.MTL