diff --git a/pkgs/development/libraries/libpst/default.nix b/pkgs/development/libraries/libpst/default.nix
index 0a7eb618b184..9eb3d345ecb7 100644
--- a/pkgs/development/libraries/libpst/default.nix
+++ b/pkgs/development/libraries/libpst/default.nix
@@ -2,11 +2,11 @@
   pkgconfig, bzip2, xmlto, gettext, imagemagick, doxygen }:
 
 stdenv.mkDerivation rec {
-  name = "libpst-0.6.68";
+  name = "libpst-0.6.70";
 
   src = fetchurl {
       url = "http://www.five-ten-sg.com/libpst/packages/${name}.tar.gz";
-      sha256 = "06mcaga36i65n1ifr5pw6ghcb1cjfqwrmm1xmaw1sckqf2iqx2by";
+      sha256 = "1m378vxh1sf9ry8k11x773xpy5f6cab5gkzqglz0jp9hc431r60r";
     };
 
   buildInputs = [ autoreconfHook boost python2 libgsf pkgconfig bzip2