diff --git a/pkgs/applications/networking/mailreaders/thunderbird/packages.nix b/pkgs/applications/networking/mailreaders/thunderbird/packages.nix
index bb64529aa78b..020d5974c846 100644
--- a/pkgs/applications/networking/mailreaders/thunderbird/packages.nix
+++ b/pkgs/applications/networking/mailreaders/thunderbird/packages.nix
@@ -50,8 +50,8 @@ in rec {
   thunderbird = thunderbird-128;
 
   thunderbird-115 = common {
-    version = "115.13.0";
-    sha512 = "98ee23f684aa7a166878459a6a217bf3bcc4ddd8fa8ebbd0a1d2d66392ec1ebff67dbad55d145cdd0771539f127d91c4137211cf4efc80e450e6a34c95e8529c";
+    version = "115.14.0";
+    sha512 = "b12e1302d6be94dd88bee6dd069d3fec944bfce95e1afc1d72c14cc188d952fd5a85f0e70575317250701ac89498d876f3384b022957689fabcef61ad7d78c29";
 
     updateScript = callPackage ./update.nix {
       attrPath = "thunderbirdPackages.thunderbird-115";