diff --git a/pkgs/development/libraries/haskell/markdown/default.nix b/pkgs/development/libraries/haskell/markdown/default.nix
index 9727b7264d4..d2d7ef84375 100644
--- a/pkgs/development/libraries/haskell/markdown/default.nix
+++ b/pkgs/development/libraries/haskell/markdown/default.nix
@@ -7,8 +7,8 @@
 
 cabal.mkDerivation (self: {
   pname = "markdown";
-  version = "0.1.11";
-  sha256 = "1v5bqwzh0v17ylgnbl16bw4n9shyrff7nabwnzzhs2wmqp85n3js";
+  version = "0.1.12";
+  sha256 = "19qpr9k3yz5c77i4y4qldq4ak0m8iy6ca5wjx6mix9krlnwxkrid";
   buildDepends = [
     attoparsec blazeHtml conduit conduitExtra dataDefault text
     transformers xssSanitize