diff --git a/BioArchLinux/r-bac/PKGBUILD b/BioArchLinux/r-bac/PKGBUILD
index f3e8d201b8..c555144bd1 100644
--- a/BioArchLinux/r-bac/PKGBUILD
+++ b/BioArchLinux/r-bac/PKGBUILD
@@ -1,10 +1,10 @@
 # Maintainer: Guoyi Zhang <guoyizhang at malacology dot net>
 
 _pkgname=BAC
-_pkgver=1.54.0
+_pkgver=1.56.0
 pkgname=r-${_pkgname,,}
-pkgver=1.54.0
-pkgrel=2
+pkgver=1.56.0
+pkgrel=1
 pkgdesc='Bayesian Analysis of Chip-chip experiment'
 arch=('x86_64')
 url="https://bioconductor.org/packages/${_pkgname}"
@@ -13,7 +13,7 @@ depends=(
   r
 )
 source=("https://bioconductor.org/packages/release/bioc/src/contrib/${_pkgname}_${_pkgver}.tar.gz")
-sha256sums=('63b225851a27027718c70f0984e90e866bf28b4efb7da2068183929147bff4f6')
+sha256sums=('0256bc2d850e9848c759f4904ca1051a93a264fcb69d5396354e8b8606397c36')
 
 build() {
   R CMD INSTALL ${_pkgname}_${_pkgver}.tar.gz -l "${srcdir}"