diff --git a/extra/thunderbird/PKGBUILD b/extra/thunderbird/PKGBUILD
index e9bfce494..5a45427bd 100644
--- a/extra/thunderbird/PKGBUILD
+++ b/extra/thunderbird/PKGBUILD
@@ -16,7 +16,7 @@ buildarch=28
 highmem=1
 
 pkgname=thunderbird
-pkgver=45.4.0
+pkgver=45.5.0
 pkgrel=1
 pkgdesc="Standalone mail and news reader from mozilla.org"
 arch=('i686' 'x86_64')
@@ -38,7 +38,7 @@ source=(https://ftp.mozilla.org/pub/mozilla.org/thunderbird/releases/$pkgver/sou
         no-neon.patch
         mozilla-1253216.patch)
 options=('!emptydirs' '!makeflags')
-sha256sums=('36f66edbb9b0f1ff9d0de8f12eab6cccbfa23db79e01db307fb2186904a38e61'
+sha256sums=('9571dee75d14cab3533e09599b2c183624f159cf8ae623f01ca6dc69eb846082'
             'e6ab613a6d15668ac6856b591d07efa4a338671dad4ce09e9254662848462ee5'
             '3fba13d88aeb003ab0811ef739463858172ce0662a1c7d62835df3d83ddbb8fb'
             '24599eab8862476744fe1619a9a53a5b8cdcab30b3fc5767512f31d3529bd05d'