diff --git a/pkgs/applications/science/machine-learning/starspace/default.nix b/pkgs/applications/science/machine-learning/starspace/default.nix
index 59bc3a841759..ab0c10efebce 100644
--- a/pkgs/applications/science/machine-learning/starspace/default.nix
+++ b/pkgs/applications/science/machine-learning/starspace/default.nix
@@ -2,7 +2,7 @@
 
 stdenv.mkDerivation rec {
   pname = "starspace";
-  version = "unstable-2021-01-17";
+  version = "unstable-2019-12-13";
 
   src = fetchFromGitHub {
     owner = "facebookresearch";