diff --git a/srcpkgs/thunderbird/template b/srcpkgs/thunderbird/template
index 2668cfffbe3..ac06df9e1a2 100644
--- a/srcpkgs/thunderbird/template
+++ b/srcpkgs/thunderbird/template
@@ -1,13 +1,13 @@
 # Template build file for 'thunderbird'.
 pkgname=thunderbird
-version=45.2.0
+version=45.3.0
 revision=1
 short_desc="Standalone Mail/News reader"
 maintainer="Enno Boland <gottox@voidlinux.eu>"
 homepage="http://www.mozilla.org/thunderbird/"
 license="MPL-2.0, GPL-2, LGPL-2.1"
 distfiles="${MOZILLA_SITE}/${pkgname}/releases/${version}/source/${pkgname}-${version}.source.tar.xz"
-checksum=bd2389cbb28138668ab41b26f1dce49c455807e09b43fd370ee765ae3f0937c0
+checksum=231f6a7a073344659e436a2b1ae58004c3a29e74375af2c8d0de13f3bc79fac7
 
 nopie=yes
 lib32disabled=yes