diff --git a/pkgs/applications/networking/mailreaders/thunderbird/default.nix b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
index 78ed553ccd8..000f3fbe900 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird/default.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
@@ -25,11 +25,11 @@ let
   gcc = if stdenv.cc.isGNU then stdenv.cc.cc else stdenv.cc.cc.gcc;
 in stdenv.mkDerivation rec {
   pname = "thunderbird";
-  version = "68.2.2";
+  version = "68.3.0";
 
   src = fetchurl {
     url = "mirror://mozilla/thunderbird/releases/${version}/source/thunderbird-${version}.source.tar.xz";
-    sha512 = "3mvanjfc35f14lsfa4zjlhsvwij1n9dz9xmisd5s376r5wp9y33sva5ly914b2hmdl85ypdwv90zyi6whj7jb2f2xmqk480havxgjcn";
+    sha512 = "3aqr3dj5laws516k6jf8f35a1964p0s75sp682yy87xnzgd8m1iha55z79dcavis2ma9hiyacjnznjz04qhqd4q8swjgfg7lj8lyiwl";
   };
 
   # from firefox, but without sound libraries