diff --git a/csound-sampler.cabal b/csound-sampler.cabal
--- a/csound-sampler.cabal
+++ b/csound-sampler.cabal
@@ -1,5 +1,5 @@
 name:                csound-sampler
-version:             0.0.3
+version:             0.0.3.1
 license:             BSD3
 license-file:        LICENSE
 author:              Anton Kholomiov
@@ -25,7 +25,7 @@
 library
   Ghc-Options:    -Wall
   Hs-Source-Dirs:      src/
-  build-depends:       base >= 4, base < 5, transformers >= 0.3, csound-expression >= 4.1.0
+  build-depends:       base >= 4, base < 5, transformers >= 0.3, csound-expression >= 4.2.0
   exposed-modules:     
     Csound.Sam
     Csound.Sam.Core