diff --git a/pkgs/os-specific/linux/fwts/default.nix b/pkgs/os-specific/linux/fwts/default.nix
index 1e16725af3f9..daeda5fa8c07 100644
--- a/pkgs/os-specific/linux/fwts/default.nix
+++ b/pkgs/os-specific/linux/fwts/default.nix
@@ -3,11 +3,11 @@
 
 stdenv.mkDerivation rec {
   name = "fwts-${version}";
-  version = "18.11.00";
+  version = "18.12.00";
 
   src = fetchzip {
     url = "http://fwts.ubuntu.com/release/fwts-V${version}.tar.gz";
-    sha256 = "14dxw0ny5z681kz4dpm2phyanr2q4c8fqml3mhdr1mb2ndrrwqgz";
+    sha256 = "10kzn5r099i4b8m5l7s68fs885d126l9cingq9gj1g574c18hg2s";
     stripRoot = false;
   };
 
@@ -20,6 +20,8 @@ stdenv.mkDerivation rec {
     substituteInPlace src/lib/include/fwts_binpaths.h --replace "/usr/bin/iasl"       "${iasl}/bin/iasl"
   '';
 
+  enableParallelBuilding = true;
+
   meta = with stdenv.lib; {
     homepage = "https://wiki.ubuntu.com/FirmwareTestSuite";
     description = "Firmware Test Suite";