diff --git a/fft.cabal b/fft.cabal
--- a/fft.cabal
+++ b/fft.cabal
@@ -1,5 +1,5 @@
 name:                fft
-version:             0.1.8.2
+version:             0.1.8.3
 synopsis:            Bindings to the FFTW library.
 description:
                      Bindings to the FFTW library.
@@ -20,7 +20,7 @@
 flag base4
 
 source-repository this
-  tag:         0.1.8.2
+  tag:         0.1.8.3
   type:        darcs
   location:    http://hub.darcs.net/thielema/fft/
 
@@ -30,7 +30,7 @@
 
 library
   build-depends:
-    transformers >=0.3 && <0.5,
+    transformers >=0.3 && <0.6,
     carray >=0.1.5 && <0.2,
     storable-complex >=0.2.1 && <0.3,
     ix-shapable >=0.1 && <0.2