diff --git a/pkgs/applications/science/math/weka/default.nix b/pkgs/applications/science/math/weka/default.nix
index 9d18763aa32d..6a9eeff3b57c 100644
--- a/pkgs/applications/science/math/weka/default.nix
+++ b/pkgs/applications/science/math/weka/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "weka";
-  version = "3.9.2";
+  version = "3.9.6";
 
   src = fetchurl {
     url = "mirror://sourceforge/weka/${lib.replaceChars ["."]["-"] "${pname}-${version}"}.zip";
-    sha256 = "0zwmhspmqb0a7cm6k6i0s6q3w19ws1g9dx3cp2v3g3vsif6cdh31";
+    sha256 = "sha256-8fVN4MXYqXNEmyVtXh1IrauHTBZWgWG8AvsGI5Y9Aj0=";
   };
 
   nativeBuildInputs = [ makeWrapper unzip ];
@@ -21,11 +21,12 @@ stdenv.mkDerivation rec {
       --add-flags "-Xmx1000M -jar $out/share/weka/weka.jar"
   '';
 
-  meta = {
+  meta = with lib; {
     homepage = "http://www.cs.waikato.ac.nz/ml/weka/";
     description = "Collection of machine learning algorithms for data mining tasks";
-    license = lib.licenses.gpl2Plus;
-    maintainers = [ lib.maintainers.mimame ];
-    platforms = lib.platforms.unix;
+    sourceProvenance = with sourceTypes; [ binaryBytecode ];
+    license = licenses.gpl2Plus;
+    maintainers = [ maintainers.mimame ];
+    platforms = platforms.unix;
   };
 }