diff --git a/pkgs/applications/networking/mailreaders/thunderbird/default.nix b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
index ee8d36b421a..e36d99886e2 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird/default.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
@@ -72,13 +72,13 @@ assert waylandSupport -> gtk3Support == true;
 
 stdenv.mkDerivation rec {
   pname = "thunderbird";
-  version = "68.8.1";
+  version = "68.9.0";
 
   src = fetchurl {
     url =
       "mirror://mozilla/thunderbird/releases/${version}/source/thunderbird-${version}.source.tar.xz";
     sha512 =
-      "2zq65qhrg8xsz75yywcijdjbkndn79w73v5vyahiyyibc8lfjphz0zaihk67ja82fpnxlnsfvy45s8x5l42kcbb0wibkjy7m55bd6h7";
+      "3q0dikgkfr72hhz39pxi2f0cljn09lw4940qcn9kzfwfid2h290j7pihx6gs0z6h82fl78f9fl1598d064lwl1i2434dzx6bg4p4549";
   };
 
   nativeBuildInputs = [