diff --git a/pkgs/development/libraries/haskell/pandoc-types/default.nix b/pkgs/development/libraries/haskell/pandoc-types/default.nix
index ee44d908c498..6b84a53e0c2b 100644
--- a/pkgs/development/libraries/haskell/pandoc-types/default.nix
+++ b/pkgs/development/libraries/haskell/pandoc-types/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "pandoc-types";
-  version = "1.12.4";
-  sha256 = "10vlw8iabaay0xqlshagl45ksawlanlg6fyqwv9d448qm32ngvdn";
+  version = "1.12.4.1";
+  sha256 = "1wbgm0s45smi8gix0byapkiarbb416fv765fc329qsvl295xlyqq";
   buildDepends = [ aeson deepseqGenerics syb ];
   meta = {
     homepage = "http://johnmacfarlane.net/pandoc";