diff --git a/pkgs/applications/audio/ardour/default.nix b/pkgs/applications/audio/ardour/default.nix
index a4debfe37440..850848abcde6 100644
--- a/pkgs/applications/audio/ardour/default.nix
+++ b/pkgs/applications/audio/ardour/default.nix
@@ -16,7 +16,7 @@ let
   # "git describe" when _not_ on an annotated tag(!): MAJOR.MINOR-REV-HASH.
 
   # Version to build.
-  tag = "5.11";
+  tag = "5.12";
 
 in
 
@@ -25,12 +25,12 @@ stdenv.mkDerivation rec {
 
   src = fetchgit {
     url = "git://git.ardour.org/ardour/ardour.git";
-    rev = "bd40b9132cbac2d2b79ba0ef480bd41d837f8f71";
-    sha256 = "0xxxjg90jzj5cj364mlhk8srkgaghxif2jj1015bra25pffk41ay";
+    rev = "ae0dcdc0c5d13483271065c360e378202d20170a";
+    sha256 = "0mla5lm51ryikc2rrk53max2m7a5ds6i1ai921l2h95wrha45nkr";
   };
 
   buildInputs =
-    [ alsaLib aubio boost cairomm curl doxygen dbus fftw fftwSinglePrec flac 
+    [ alsaLib aubio boost cairomm curl doxygen dbus fftw fftwSinglePrec flac
       glibmm graphviz gtkmm2 libjack2 libgnomecanvas libgnomecanvasmm liblo
       libmad libogg librdf librdf_raptor librdf_rasqal libsamplerate
       libsigcxx libsndfile libusb libuuid libxml2 libxslt lilv lv2