diff --git a/pkgs/applications/networking/mailreaders/thunderbird/default.nix b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
index d91239c3a6ee..78a9ef0dbb3e 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird/default.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
@@ -73,13 +73,13 @@ assert waylandSupport -> gtk3Support == true;
 
 stdenv.mkDerivation rec {
   pname = "thunderbird";
-  version = "78.7.1";
+  version = "78.8.0";
 
   src = fetchurl {
     url =
       "mirror://mozilla/thunderbird/releases/${version}/source/thunderbird-${version}.source.tar.xz";
     sha512 =
-      "328p14mgcam4dxx0asbgp4v2v559bwbw7z2kxd5yfwkna040r9ccrkkirma5580z9vkwb0rcjlmai9wrbacxrg8hg65d8vylvnkampy";
+      "18hx7qi4nwfbygh1ykczvs7vyvmcqwj4x838lpillimzwjd7chyrbjz2b2h15ckfgndbrxmwvvd3v50bj04xpqigvz18g46nav1mly7";
   };
 
   nativeBuildInputs = [