diff --git a/pkgs/development/compilers/ponyc/default.nix b/pkgs/development/compilers/ponyc/default.nix
index 3f1aa85e0fcc..e70fee3605b6 100644
--- a/pkgs/development/compilers/ponyc/default.nix
+++ b/pkgs/development/compilers/ponyc/default.nix
@@ -3,13 +3,13 @@
 
 stdenv.mkDerivation ( rec {
   name = "ponyc-${version}";
-  version = "0.11.0";
+  version = "0.11.3";
 
   src = fetchFromGitHub {
     owner = "ponylang";
     repo = "ponyc";
     rev = version;
-    sha256 = "0jjzc1711km53zkkxwy4r9ki9yxdx8mdjrp7g3mkr42p7q5h4w70";
+    sha256 = "08wh8rh17bf043glvn7778bwpxyzpm95kgfll645hf2m65n5ncsh";
   };
 
   buildInputs = [ llvm makeWrapper which ];
diff --git a/pkgs/development/compilers/ponyc/pony-stable.nix b/pkgs/development/compilers/ponyc/pony-stable.nix
index cd4859acec21..6e669c97300c 100644
--- a/pkgs/development/compilers/ponyc/pony-stable.nix
+++ b/pkgs/development/compilers/ponyc/pony-stable.nix
@@ -1,13 +1,13 @@
 {stdenv, fetchFromGitHub, ponyc }:
 
 stdenv.mkDerivation {
-  name = "pony-stable-2016-10-10";
+  name = "pony-stable-unstable-2017-01-03";
 
   src = fetchFromGitHub {
     owner = "jemc";
     repo = "pony-stable";
-    rev = "fdefa26fed93f4ff81c323f29abd47813c515703";
-    sha256 = "16inavy697icgryyvn9gcylgh639xxs7lnbrqdzcryvh0ck15qxk";
+    rev = "0054b429a54818d187100ed40f5525ec7931b31b";
+    sha256 = "0libx8byzwqjjgxxyiiahiprzzp845xgbk09sx9bzban5cd5j0g5";
   };
 
   buildInputs = [ ponyc ];