diff --git a/stm-conduit.cabal b/stm-conduit.cabal
--- a/stm-conduit.cabal
+++ b/stm-conduit.cabal
@@ -1,5 +1,5 @@
 Name:                stm-conduit
-Version:             2.0.0
+Version:             2.1.0
 Synopsis:            Introduces conduits to channels, and promotes using
                      conduits concurrently.
 Description:         Provides two simple conduit wrappers around STM
@@ -24,7 +24,7 @@
         base         == 4.*
       , transformers >= 0.2 && <= 0.4
       , stm          == 2.4.*
-      , stm-chans    == 2.0.*
+      , stm-chans    >= 2.0 && < 3.1
       , conduit      == 1.0.*
       , resourcet    >= 0.3 && < 0.5
 
@@ -48,7 +48,7 @@
       , stm-conduit
       , conduit
       , transformers
-      , stm-chans == 2.0.*
+      , stm-chans
   
 source-repository head
     type:     git