diff --git a/BioArchLinux/r-alphabeta/PKGBUILD b/BioArchLinux/r-alphabeta/PKGBUILD
index cafaa7c10f..59e6513d9a 100644
--- a/BioArchLinux/r-alphabeta/PKGBUILD
+++ b/BioArchLinux/r-alphabeta/PKGBUILD
@@ -1,9 +1,9 @@
 # Maintainer: Guoyi Zhang <guoyizhang at malacology dot net>
 
 _pkgname=AlphaBeta
-_pkgver=1.18.0
+_pkgver=1.20.0
 pkgname=r-${_pkgname,,}
-pkgver=1.18.0
+pkgver=1.20.0
 pkgrel=1
 pkgdesc='Computational inference of epimutation rates and spectra from high-throughput DNA methylation data in plants'
 arch=('any')
@@ -27,7 +27,7 @@ optdepends=(
   r-rmarkdown
 )
 source=("https://bioconductor.org/packages/release/bioc/src/contrib/${_pkgname}_${_pkgver}.tar.gz")
-sha256sums=('653963c416c14a07efe787376d9fb1e70e24d06904a6cbde45dd1c23b8f352a4')
+sha256sums=('f991208b7b593fe8df93ea3d9b007080c5445a986f051a8e4573b5a23a1ace7f')
 
 build() {
   R CMD INSTALL ${_pkgname}_${_pkgver}.tar.gz -l "${srcdir}"