diff --git a/pkgs/development/libraries/haskell/yap/default.nix b/pkgs/development/libraries/haskell/yap/default.nix
index 858466ab1a49..27938a2fad09 100644
--- a/pkgs/development/libraries/haskell/yap/default.nix
+++ b/pkgs/development/libraries/haskell/yap/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "yap";
-  version = "0.0";
-  sha256 = "0cjsmf9p220fb9yf2i81xspa3rpnlln3hfb9yc5x6xbcc6py0nw5";
+  version = "0.1";
+  sha256 = "14x1z5pmb499qq5sy0iksxv0mli8556s1jh9jm7rdg671h1cy1hl";
   meta = {
     description = "yet another prelude - a simplistic refactoring with algebraic classes";
     license = self.stdenv.lib.licenses.bsd3;