diff --git a/pkgs/development/compilers/opendylan/default.nix b/pkgs/development/compilers/opendylan/default.nix
index 773ab9f473f1..95f4dc5b215f 100644
--- a/pkgs/development/compilers/opendylan/default.nix
+++ b/pkgs/development/compilers/opendylan/default.nix
@@ -2,18 +2,18 @@
 {stdenv, fetchgit, boehmgc, mps, gnused, opendylan-bootstrap, autoconf, automake, perl, makeWrapper, gcc }:
 
 stdenv.mkDerivation {
-  name = "opendylan-2013.2";
+  name = "opendylan-2016.1pre";
 
   src = fetchgit {
     url = https://github.com/dylan-lang/opendylan;
-    rev = "ce9b14dab6cb9ffedc69fae8c6df524c0c79abd3";
-    sha256 = "17jvhv0y63fj25ma05k70b7phcwgjyna5qkrirk48z3xapb8bknd";
+    rev = "cd9a8395586d33cc43a8611c1dc0513e69ee82dd";
+    sha256 = "00r1dm7mjy5p4hfm13vc4b6qryap40zinia3y15rhvalc3i2np4b";
     fetchSubmodules = true;
   };
 
   buildInputs = (if stdenv.system == "i686-linux" then [ mps ] else [ boehmgc ]) ++ [
     opendylan-bootstrap boehmgc gnused autoconf automake perl makeWrapper
-  ] ;
+  ];
 
   preConfigure = if stdenv.system == "i686-linux" then ''
     mkdir -p $TMPDIR/mps