diff --git a/visual-prof.cabal b/visual-prof.cabal
--- a/visual-prof.cabal
+++ b/visual-prof.cabal
@@ -1,5 +1,5 @@
 Name:                   visual-prof
-Version:                0.4
+Version:                0.5
 Cabal-Version:		    >= 1.2
 License:                BSD3
 License-file:           LICENSE
@@ -38,7 +38,7 @@
     Build-Depends: base >= 3 && < 5, containers
   else
     Build-Depends: base < 3
-  Build-depends: filepath, haskell-src-exts, regexpr, directory, process, pretty, mtl, uniplate, split
+  Build-depends: filepath, haskell-src-exts==1.13.5, regexpr, directory, process, pretty, mtl, uniplate, split
 
   Main-is:                Prof2Html.hs
   Other-modules:          Pretty