diff --git a/pkgs/development/libraries/science/biology/EBTKS/default.nix b/pkgs/development/libraries/science/biology/EBTKS/default.nix
index 6ed6c8262a50..9e27d041f8d6 100644
--- a/pkgs/development/libraries/science/biology/EBTKS/default.nix
+++ b/pkgs/development/libraries/science/biology/EBTKS/default.nix
@@ -2,7 +2,7 @@
 
 stdenv.mkDerivation rec {
   pname = "EBTKS";
-  name  = "${pname}-1.6.50";
+  name  = "${pname}-2017-09-23";
 
   src = fetchFromGitHub {
     owner  = "BIC-MNI";