diff --git a/pkgs/development/libraries/szip/default.nix b/pkgs/development/libraries/szip/default.nix
index 2ad2ed55d7c0..b74c58a2e38c 100644
--- a/pkgs/development/libraries/szip/default.nix
+++ b/pkgs/development/libraries/szip/default.nix
@@ -1,10 +1,11 @@
 { stdenv, fetchurl }:
     
-stdenv.mkDerivation {
-  name = "szip-2.1";
+stdenv.mkDerivation rec {
+  name = "szip-${version}";
+  version = "2.1.1";
   src = fetchurl {
-    url = ftp://ftp.hdfgroup.org/lib-external/szip/2.1/src/szip-2.1.tar.gz;
-    sha256 = "1vym7r4by02m0yqj10023xyps5b21ryymnxb4nb2gs32arfxj5m8";
+    url = "ftp://ftp.hdfgroup.org/lib-external/szip/${version}/src/szip-${version}.tar.gz";
+    sha256 = "1a8415a7xifagb22aq9dmy7b2s5l0y6diany3b4qigylw6adlzc9";
   };
 
   meta = {