diff --git a/pkgs/applications/networking/mailreaders/sylpheed/default.nix b/pkgs/applications/networking/mailreaders/sylpheed/default.nix
index d58680d15d5..22bfddc5b57 100644
--- a/pkgs/applications/networking/mailreaders/sylpheed/default.nix
+++ b/pkgs/applications/networking/mailreaders/sylpheed/default.nix
@@ -8,11 +8,11 @@ with stdenv.lib;
 
 stdenv.mkDerivation rec {
   name = "sylpheed-${version}";
-  version = "3.6.0";
+  version = "3.7.0";
 
   src = fetchurl {
-    url = "http://sylpheed.sraoss.jp/sylpheed/v3.6/${name}.tar.bz2";
-    sha256 = "0idk9nz3d200l2bxc38vnxlx0wcslrvncy9lk50vz7dl8c5sg97b";
+    url = "http://sylpheed.sraoss.jp/sylpheed/v3.7/${name}.tar.xz";
+    sha256 = "0j9y5vdzch251s264diw9clrn88dn20bqqkwfmis9l7m8vmwasqd";
   };
 
   nativeBuildInputs = [ pkgconfig ];