diff --git a/extra/thunderbird/PKGBUILD b/extra/thunderbird/PKGBUILD
index ecfdf4684..fb72e89e0 100644
--- a/extra/thunderbird/PKGBUILD
+++ b/extra/thunderbird/PKGBUILD
@@ -13,8 +13,8 @@
 buildarch=28
 
 pkgname=thunderbird
-pkgver=38.3.0
-pkgrel=3
+pkgver=38.4.0
+pkgrel=1
 pkgdesc="Standalone Mail/News reader"
 arch=('i686' 'x86_64')
 license=('MPL' 'GPL')
@@ -32,7 +32,7 @@ source=(https://ftp.mozilla.org/pub/mozilla.org/thunderbird/releases/$pkgver/sou
         vendor.js
         no-neon.patch)
 options=('!emptydirs' '!makeflags')
-sha256sums=('9f3cb19a5ceabc5e8fa31f782b6d92720a77ef2c2d6c7b63b3d792cde491c961'
+sha256sums=('326a4408d6dc79890cba8466dbc337acf99df76b58dadb0ed453e5e42af7fdbe'
             '1f5ce57ba5531d533f34407010cfa5bb0fe09f9f1d3ed859cafbc5283b3a63d9'
             '3fba13d88aeb003ab0811ef739463858172ce0662a1c7d62835df3d83ddbb8fb'
             '24599eab8862476744fe1619a9a53a5b8cdcab30b3fc5767512f31d3529bd05d'