diff --git a/pkgs/data/icons/numix-icon-theme/default.nix b/pkgs/data/icons/numix-icon-theme/default.nix
index e41373f536ff..da6556c60604 100644
--- a/pkgs/data/icons/numix-icon-theme/default.nix
+++ b/pkgs/data/icons/numix-icon-theme/default.nix
@@ -2,20 +2,20 @@
 
 stdenv.mkDerivation rec {
   pname = "numix-icon-theme";
-  version = "18.07.17";
+  version = "19.09.20";
 
   src = fetchFromGitHub {
     owner = "numixproject";
     repo = pname;
     rev = version;
-    sha256 = "0clh55kmhc52d33dfm2c6h3lg6ddfh8a088ir9lv1camn9kj55bd";
+    sha256 = "0pn3x0mmsph777lwhg890ck366p31bjl3755h4pv161ym08d4z9w";
   };
 
   nativeBuildInputs = [ gtk3 hicolor-icon-theme ];
 
   installPhase = ''
     mkdir -p $out/share/icons
-    mv Numix{,-Light} $out/share/icons
+    cp -a Numix{,-Light} $out/share/icons/
   '';
 
   postFixup = ''