diff --git a/pkgs/development/compilers/ats2/default.nix b/pkgs/development/compilers/ats2/default.nix
index 8345a353f3f9..08cae4d3e420 100644
--- a/pkgs/development/compilers/ats2/default.nix
+++ b/pkgs/development/compilers/ats2/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name    = "ats2-${version}";
-  version = "0.1.11";
+  version = "0.1.12";
 
   src = fetchurl {
     url = "mirror://sourceforge/ats2-lang/ATS2-Postiats-${version}.tgz";
-    sha256 = "1dy2f7lxfwcmrk753midr75cy8xs6pqnmqmj9xj0ch479q4pkpsv";
+    sha256 = "1jiki88mzhki74xh5ffw3pali5zs74pa0nylcb8n4ypfvdpqvlhb";
   };
 
   buildInputs = [ gmp ];