diff --git a/BioArchLinux/r-iso/PKGBUILD b/BioArchLinux/r-iso/PKGBUILD
index ccaa7d558c..6d521481d7 100644
--- a/BioArchLinux/r-iso/PKGBUILD
+++ b/BioArchLinux/r-iso/PKGBUILD
@@ -1,10 +1,10 @@
 # Maintainer: Guoyi Zhang <guoyizhang at malacology dot net>
 
 _pkgname=Iso
-_pkgver=0.0-18.1
+_pkgver=0.0-21
 pkgname=r-${_pkgname,,}
-pkgver=0.0.18.1
-pkgrel=8
+pkgver=0.0.21
+pkgrel=1
 pkgdesc='Functions to Perform Isotonic Regression'
 arch=('x86_64')
 url="https://cran.r-project.org/package=${_pkgname}"
@@ -16,7 +16,7 @@ makedepends=(
   gcc-fortran
 )
 source=("https://cran.r-project.org/src/contrib/${_pkgname}_${_pkgver}.tar.gz")
-sha256sums=('2fa5f78a7603cbae94a5e38e791938596a053d48c609a7c120a19cbb7d93c66f')
+sha256sums=('b6842ae1c7b629ebb63355f50bb2e5d96e5696fa59590807ac6028b6dce28fa6')
 
 build() {
   R CMD INSTALL ${_pkgname}_${_pkgver}.tar.gz -l "${srcdir}"