diff --git a/pkgs/applications/networking/browsers/icecat-3/default.nix b/pkgs/applications/networking/browsers/icecat-3/default.nix
index cd786c2b014..39ce47ef066 100644
--- a/pkgs/applications/networking/browsers/icecat-3/default.nix
+++ b/pkgs/applications/networking/browsers/icecat-3/default.nix
@@ -1,28 +1,25 @@
-{ stdenv, fetchurl, lzma, pkgconfig, gtk, pango, perl, python, zip, libIDL
+{ stdenv, fetchurl, pkgconfig, gtk, pango, perl, python, zip, libIDL
 , libjpeg, libpng, zlib, cairo, dbus, dbus_glib, bzip2, xlibs
 , gnomevfs, libgnomeui
 , freetype, fontconfig
 , application ? "browser" }:
 
-let version = "3.0.5-g1"; in
+let version = "3.0.6-g1"; in
 stdenv.mkDerivation {
   name = "icecat-${version}";
 
   src = fetchurl {
-    url = "mirror://gnu/gnuzilla/${version}/icecat-${version}.tar.lzma";
-    sha256 = "15s71zjwiqpaqsmjzk5kxwamxzkb3p7172dbazqyxmgvca9yw8bs";
+    url = "mirror://gnu/gnuzilla/${version}/icecat-${version}.tar.bz2";
+    sha256 = "0lcxvlviwgaj9w6ywn0656a2y3qdxdlw0mf5f9ljdd9jpw4fxjih";
   };
 
   buildInputs = [
-    lzma
     libgnomeui gnomevfs
     pkgconfig gtk perl zip libIDL libjpeg libpng zlib cairo bzip2
     python dbus dbus_glib pango freetype fontconfig
     xlibs.libXi xlibs.libX11 xlibs.libXrender xlibs.libXft xlibs.libXt
   ];
 
-  unpackCmd = "lzma -d < $src | tar xv";
-
   patches = [ ./skip-gre-registration.patch ];
 
   configureFlags = [
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 621928406ac..955762ecb93 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7603,14 +7603,14 @@ let
   };
 
   icecat3 = lowPrio (import ../applications/networking/browsers/icecat-3 {
-    inherit fetchurl stdenv lzma pkgconfig perl zip libjpeg libpng zlib cairo
+    inherit fetchurl stdenv pkgconfig perl zip libjpeg libpng zlib cairo
       python dbus dbus_glib freetype fontconfig bzip2 xlibs;
     inherit (gnome) libIDL libgnomeui gnomevfs gtk pango;
   });
 
   icecatXulrunner3 = lowPrio (import ../applications/networking/browsers/icecat-3 {
     application = "xulrunner";
-    inherit fetchurl stdenv lzma pkgconfig perl zip libjpeg libpng zlib cairo
+    inherit fetchurl stdenv pkgconfig perl zip libjpeg libpng zlib cairo
       python dbus dbus_glib freetype fontconfig bzip2 xlibs;
     inherit (gnome) libIDL libgnomeui gnomevfs gtk pango;
   });