diff --git a/pkgs/development/interpreters/ceptre/default.nix b/pkgs/development/interpreters/ceptre/default.nix
index 1f25a2031f27..29d63f1d0048 100644
--- a/pkgs/development/interpreters/ceptre/default.nix
+++ b/pkgs/development/interpreters/ceptre/default.nix
@@ -1,12 +1,12 @@
 { stdenv, fetchgit, mlton }:
 
 stdenv.mkDerivation rec {
-  name = "ceptre-2016-01-01";
+  name = "ceptre-2016-11-27";
 
   src = fetchgit {
     url = https://github.com/chrisamaphone/interactive-lp;
-    rev = "b3d21489d4994f03d2982de273eea90bc7fba5d0";
-    sha256 = "1qpyasr3jg4i2x547yq1dzksvjagvnrmkdd00s108wvw9npc2jj1";
+    rev = "e436fda2ccd44e9c9d226feced9d204311deacf5";
+    sha256 = "174pxfnw3qyn2w8qxmx45fa68iddf106mkfi0kcmyqxzsc9jprh8";
   };
 
   nativeBuildInputs = [ mlton ];