Index: b/filtrable.cabal
===================================================================
--- a/filtrable.cabal
+++ b/filtrable.cabal
@@ -1,5 +1,6 @@
 name:                filtrable
 version:             0.1.6.0
+x-revision: 1
 synopsis:            Class of filtrable containers
 homepage:            https://github.com/strake/filtrable.hs
 license:             BSD3
@@ -22,7 +23,7 @@ library
   other-modules:
     Data.Set.Private
   build-depends:       base >=4.9 && <5
-                     , transformers >=0.5 && <0.6
+                     , transformers >=0.5 && <0.7
   if flag(containers)
     build-depends:     containers >=0.5.11 && <0.7
   default-language:    Haskell2010
