diff --git a/pkgs/development/libraries/haskell/instant-generics/default.nix b/pkgs/development/libraries/haskell/instant-generics/default.nix
index 648dfd7c315..f4dfc4848a6 100644
--- a/pkgs/development/libraries/haskell/instant-generics/default.nix
+++ b/pkgs/development/libraries/haskell/instant-generics/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "instant-generics";
-  version = "0.3.4";
-  sha256 = "0j3sfbw3j0izwmhvwcl8nxxvlrpfla5rngxx2yvl6w5i87wyhswi";
+  version = "0.3.5";
+  sha256 = "15j41krvabf541vm4vpn2jvlg3nbi6pywcig9zbjjpckzwp5vj9x";
   buildDepends = [ syb ];
   meta = {
     homepage = "http://www.cs.uu.nl/wiki/GenericProgramming/InstantGenerics";