diff --git a/pkgs/tools/graphics/yaxg/default.nix b/pkgs/tools/graphics/yaxg/default.nix
index 094ec2d5bc492..0f483ab686f71 100644
--- a/pkgs/tools/graphics/yaxg/default.nix
+++ b/pkgs/tools/graphics/yaxg/default.nix
@@ -3,7 +3,7 @@
 
 stdenv.mkDerivation rec {
   pname = "yaxg";
-  version = "unstable-2018-05-03";
+  version = "2018-05-03";
 
   src = fetchFromGitHub {
     owner = "DanielFGray";