diff --git a/xz/PKGBUILD b/xz/PKGBUILD
index 70943ede..ca90f105 100644
--- a/xz/PKGBUILD
+++ b/xz/PKGBUILD
@@ -1,7 +1,7 @@
 # Maintainer: Alexey Pavlov <alexpux@gmail.com>
 
 pkgname=('xz' 'liblzma' 'liblzma-devel')
-pkgver=5.4.2
+pkgver=5.4.3
 pkgrel=1
 pkgdesc='Library and command line tools for XZ and LZMA compressed files'
 arch=('i686' 'x86_64')
@@ -11,9 +11,10 @@ depends=('sh' 'libiconv' 'gettext')
 makedepends=('libiconv-devel' 'gettext-devel' 'autotools' 'gcc')
 options=('staticlibs')
 source=("https://tukaani.org/${pkgname}/${pkgname}-${pkgver}.tar.gz"{,.sig})
-sha256sums=('87947679abcf77cc509d8d1b474218fd16b72281e2797360e909deaee1ac9d05'
+sha256sums=('1c382e0bc2e4e0af58398a903dd62fff7e510171d2de47a1ebe06d1528e9b7e9'
             'SKIP')
-validpgpkeys=('3690C240CE51B4670D30AD1C38EE757D69184620')  # Lasse Collin <lasse.collin@tukaani.org>
+validpgpkeys=('3690C240CE51B4670D30AD1C38EE757D69184620' # Lasse Collin <lasse.collin@tukaani.org>
+              '22D465F2B4C173803B20C6DE59FCF207FEA7F445') # Jia Tan <jiat0218@gmail.com>
 
 prepare() {
   cd ${srcdir}/${pkgname}-${pkgver}