diff --git a/pkgs/applications/networking/mailreaders/thunderbird/default.nix b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
index 58eae867487..ac8eb2f811b 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird/default.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
@@ -71,13 +71,13 @@ assert waylandSupport -> gtk3Support == true;
 
 stdenv.mkDerivation rec {
   pname = "thunderbird";
-  version = "78.5.1";
+  version = "78.6.0";
 
   src = fetchurl {
     url =
       "mirror://mozilla/thunderbird/releases/${version}/source/thunderbird-${version}.source.tar.xz";
     sha512 =
-      "202s2h9fsvg4chy93rgxdf4vlavf3wbp9vqgh0nrgk5wcdhz17144vhw1bmxia8hf99snq2a3ix6haidwl8d2n6l2nfsjzcnphhxd9z";
+      "0hx9gg3ngpvgshrz9j7ni4kh3chadqd5w5fpywjjw4naj0k53d0i9jjhq4p6fyvf6rb2g825ibqq794lr9drn6nrfndh5w1yn5lw69n";
   };
 
   nativeBuildInputs = [