diff --git a/pkgs/development/libraries/haskell/asn1-types/default.nix b/pkgs/development/libraries/haskell/asn1-types/default.nix
index a50ee82a38d..c28885b38ed 100644
--- a/pkgs/development/libraries/haskell/asn1-types/default.nix
+++ b/pkgs/development/libraries/haskell/asn1-types/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "asn1-types";
-  version = "0.2.0";
-  sha256 = "0350g5p3zbvm29nnjd554i6fyc47vmzpb42w6q46v3i9fiy23kvd";
+  version = "0.2.1";
+  sha256 = "1gnyvinimxb9vw3gwvsdvja8ascm07v9f5grxh42fzqkx6fm5xvr";
   buildDepends = [ time ];
   meta = {
     homepage = "http://github.com/vincenthz/hs-asn1-types";