1 files changed, 11 insertions, 1 deletions
diff --git a/pkgs/development/libraries/physics/geant4/fetch.nix b/pkgs/development/libraries/physics/geant4/fetch.nix
index 0e5dd54c6ae7..7dc4c8656279 100644
--- a/pkgs/development/libraries/physics/geant4/fetch.nix
+++ b/pkgs/development/libraries/physics/geant4/fetch.nix
@@ -13,7 +13,17 @@ in {
     src = fetchurl{
       url = "http://geant4.cern.ch/support/source/geant4.10.00.p02.tar.gz";
       sha256 = "9d615200901f1a5760970e8f5970625ea146253e4f7c5ad9df2a9cf84549e848";
-    };  
+    };
   };
+
+  v10_4_1 = fetch {
+    version = "10.4.1";
+
+    src = fetchurl{
+      url = "http://cern.ch/geant4-data/releases/geant4.10.04.p01.tar.gz";
+      sha256 = "a3eb13e4f1217737b842d3869dc5b1fb978f761113e74bd4eaf6017307d234dd";
+    };
+  };
+
 }