diff --git a/pkgs/development/libraries/haskell/pandoc-types/default.nix b/pkgs/development/libraries/haskell/pandoc-types/default.nix
index 7ca48e390bac..ee44d908c498 100644
--- a/pkgs/development/libraries/haskell/pandoc-types/default.nix
+++ b/pkgs/development/libraries/haskell/pandoc-types/default.nix
@@ -1,12 +1,12 @@
 # This file was auto-generated by cabal2nix. Please do NOT edit manually!
 
-{ cabal, aeson, syb }:
+{ cabal, aeson, deepseqGenerics, syb }:
 
 cabal.mkDerivation (self: {
   pname = "pandoc-types";
-  version = "1.12.3.3";
-  sha256 = "1rw641w8xdisnbni5glxqxgfjps6p8vpnvprd4zgsjqn71397pdk";
-  buildDepends = [ aeson syb ];
+  version = "1.12.4";
+  sha256 = "10vlw8iabaay0xqlshagl45ksawlanlg6fyqwv9d448qm32ngvdn";
+  buildDepends = [ aeson deepseqGenerics syb ];
   meta = {
     homepage = "http://johnmacfarlane.net/pandoc";
     description = "Types for representing a structured document";