diff --git a/pkgs/applications/networking/mailreaders/thunderbird/default.nix b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
index 720b20e71290..bfbd97001973 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird/default.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird/default.nix
@@ -22,11 +22,11 @@ let
   wrapperTool = if enableGTK3 then wrapGAppsHook else makeWrapper;
 in stdenv.mkDerivation rec {
   name = "thunderbird-${version}";
-  version = "52.5.2";
+  version = "52.6.0";
 
   src = fetchurl {
     url = "mirror://mozilla/thunderbird/releases/${version}/source/thunderbird-${version}.source.tar.xz";
-    sha512 = "d626d3d37959539b15b5d2ae4a580fcc160380974bfc1a69a1fc8ff2435932e90a69fa386d5ecb6721d9154603c6b7d063e3368f6f995fea057eb593c06ef4ff";
+    sha512 = "80742c95ed61d1cb2e72b71bb23bdd211a40240ab4393e9f028a38f902547372084a8f56445e2394484be088a7b9801405f3d6618fb2742601cc968bf34427f0";
   };
 
   # New sed no longer tolerates this mistake.