diff --git a/pkgs/development/interpreters/guile/default.nix b/pkgs/development/interpreters/guile/default.nix
index be8d238a97c..33349605736 100644
--- a/pkgs/development/interpreters/guile/default.nix
+++ b/pkgs/development/interpreters/guile/default.nix
@@ -1,4 +1,4 @@
-{ fetchurl, stdenv, libtool, readline, gmp, pkgconfig, boehmgc, libunistring
+{ fetchurl, stdenv, xz, libtool, readline, gmp, pkgconfig, boehmgc, libunistring
 , libffi, gawk, makeWrapper, coverageAnalysis ? null }:
 
 # Do either a coverage analysis build or a standard build.
@@ -7,13 +7,14 @@
  else stdenv.mkDerivation)
 
 rec {
-  name = "guile-2.0.2";
+  name = "guile-2.0.3";
 
   src = fetchurl {
-    url = "mirror://gnu/guile/${name}.tar.gz";
-    sha256 = "0adiwydwb285bb7mcakfdzjgyv24lrm7pk2grgxzi66kidpm6dhx";
+    url = "mirror://gnu/guile/${name}.tar.xz";
+    sha256 = "14rhlpxxa4v5y3gl992l7lnd5qnqawx0a84idnwq0w2qviwcvsyj";
   };
 
+  buildNativeInputs = [ xz ];
   buildInputs =
     [ makeWrapper gawk readline libtool libunistring
       libffi pkgconfig