diff --git a/machines-io.cabal b/machines-io.cabal
--- a/machines-io.cabal
+++ b/machines-io.cabal
@@ -1,5 +1,5 @@
 name:                machines-io
-version:             0.2.0.10
+version:             0.2.0.12
 synopsis:            IO utilities for the machines library
 homepage:            http://github.com/aloiscochard/machines-io
 license:             Apache-2.0
@@ -21,4 +21,4 @@
     , bytestring          >= 0.10     && < 0.11
     , chunked-data        >= 0.1      && < 0.3
     , machines            >= 0.2      && < 0.7
-    , transformers        >= 0.3      && < 0.5
+    , transformers        >= 0.3      && < 0.6