diff --git a/lzma-conduit.cabal b/lzma-conduit.cabal
--- a/lzma-conduit.cabal
+++ b/lzma-conduit.cabal
@@ -1,5 +1,5 @@
 name:                lzma-conduit
-version:             1.1.1
+version:             1.1.2
 synopsis:            Conduit interface for lzma/xz compression.
 description:
   High level bindings to xz-utils.
@@ -32,7 +32,7 @@
     bytestring        >= 0.9.1  && < 0.11,
     conduit           >= 0.4    && < 1.3,
     resourcet         >= 0.3    && < 1.2,
-    transformers      >= 0.2    && < 0.4
+    transformers      >= 0.2    && < 0.5
   ghc-options:
     -Wall
   includes: