diff --git a/BioArchLinux/r-ctc/PKGBUILD b/BioArchLinux/r-ctc/PKGBUILD
index 64648681f7..a2f6a2e2de 100644
--- a/BioArchLinux/r-ctc/PKGBUILD
+++ b/BioArchLinux/r-ctc/PKGBUILD
@@ -1,10 +1,10 @@
 # Maintainer: Guoyi Zhang <guoyizhang at malacology dot net>
 
 _pkgname=ctc
-_pkgver=1.68.0
+_pkgver=1.70.0
 pkgname=r-${_pkgname,,}
-pkgver=1.68.0
-pkgrel=2
+pkgver=1.70.0
+pkgrel=1
 pkgdesc='Cluster and Tree Conversion.'
 arch=('any')
 url="https://bioconductor.org/packages/${_pkgname}"
@@ -14,7 +14,7 @@ depends=(
   r-amap
 )
 source=("https://bioconductor.org/packages/release/bioc/src/contrib/${_pkgname}_${_pkgver}.tar.gz")
-sha256sums=('dd2bb55691eaca3b2b7a91858cf5c138ce78a9ca77389c88efd071f6f98b05fb')
+sha256sums=('eb1296a99051c127db9374edb4f979c657d97d3f153312ab13a1e356c47d3731')
 
 build() {
   R CMD INSTALL ${_pkgname}_${_pkgver}.tar.gz -l "${srcdir}"