diff --git a/pkgs/development/libraries/haskell/blaze-html/default.nix b/pkgs/development/libraries/haskell/blaze-html/default.nix
index 4d204a822d0..63859d5e91f 100644
--- a/pkgs/development/libraries/haskell/blaze-html/default.nix
+++ b/pkgs/development/libraries/haskell/blaze-html/default.nix
@@ -2,8 +2,8 @@
 
 cabal.mkDerivation (self: {
   pname = "blaze-html";
-  version = "0.5.1.2";
-  sha256 = "1lzv7s6b5hv4ja1134gjj8h5ygckhlnfb02vp5c29mbnqjpdwk5a";
+  version = "0.5.1.3";
+  sha256 = "0ia7pk346lc7664w859q09p163cxgxjjpkk7cbmbl1wj2shshh1w";
   buildDepends = [ blazeBuilder blazeMarkup text ];
   meta = {
     homepage = "http://jaspervdj.be/blaze";