diff --git a/source.nix b/source.nix
index 8c880a8..0e5bd1a 100644
--- a/source.nix
+++ b/source.nix
@@ -11,9 +11,8 @@ let
               then "buildbot"
               else "makefu";
   _file = <stockholm> + "/makefu/1systems/${name}/source.nix";
-  ref = "809cf38"; # unstable @ 2017-10-07
+  ref = "e4d07bd"; # unstable @ 2017-11-02
                    # + ruby stuff (2f0b17e4be9,55a952be5b5)
-                   # + mitmproxy fix (360a5efd,ef52c95b)
 
 in
   evalSource (toString _file) [