diff --git a/Euterpea.cabal b/Euterpea.cabal
--- a/Euterpea.cabal
+++ b/Euterpea.cabal
@@ -1,5 +1,5 @@
 name:           Euterpea
-version:        1.1.0
+version:        1.1.1
 Cabal-Version:  >= 1.8
 license:        BSD3
 license-file:	License
@@ -130,6 +130,6 @@
         PortMidi, HCodecs >= 0.2, 
         stm, containers, bytestring, heap == 0.6.0, 
         markov-chain, pure-fft, 
-        UISF >= 0.3
+        UISF >= 0.4
   if (impl(ghc >= 6.10))
     build-depends: base >= 4 && < 5, ghc-prim