diff --git a/makefu/source.nix b/makefu/source.nix
index 204ca9943..013426195 100644
--- a/makefu/source.nix
+++ b/makefu/source.nix
@@ -11,9 +11,10 @@ let
               then "buildbot"
               else "makefu";
   _file = <stockholm> + "/makefu/1systems/${name}/source.nix";
-  ref = "e8df69d"; # unstable @ 2017-10-07
+  ref = "727a3a3"; # unstable @ 2017-10-07
                    # + revert wvdial (76f4910)
                    # + ruby stuff (2f0b17e4be9,55a952be5b5)
+                   # + mitmproxy fix (360a5efd,ef52c95b)
 
 in
   evalSource (toString _file) [