diff --git a/BioArchLinux/r-optimx/PKGBUILD b/BioArchLinux/r-optimx/PKGBUILD
index cb9e7baac1..b0ea3f90ef 100644
--- a/BioArchLinux/r-optimx/PKGBUILD
+++ b/BioArchLinux/r-optimx/PKGBUILD
@@ -2,10 +2,10 @@
 # Contributor: Guoyi Zhang <guoyizhang at malacology dot net>
 
 _pkgname=optimx
-_pkgver=2023-8.13
+_pkgver=2023-10.21
 pkgname=r-${_pkgname,,}
 pkgver=${_pkgver//-/.}
-pkgrel=1
+pkgrel=0
 pkgdesc="Expanded Replacement and Extension of the 'optim' Function"
 arch=(any)
 url="https://cran.r-project.org/package=${_pkgname}"
@@ -23,6 +23,7 @@ optdepends=(
   r-lbfgsb3c
   r-marqlevalg
   r-minqa
+  r-r.rsp
   r-rmarkdown
   r-setrng
   r-subplex
@@ -30,8 +31,8 @@ optdepends=(
   r-ucminf
 )
 source=("https://cran.r-project.org/src/contrib/${_pkgname}_${_pkgver}.tar.gz")
-md5sums=('f936dff9a2dba66f63876b463957ea9f')
-sha256sums=('163956791eb3b09f6a9a1c8e2ccb7f44fe8e02124fc2a732701be9070a818803')
+md5sums=('6bf0366c13fec66c2c89c848ad3fd9b2')
+sha256sums=('0d732d5604c26af59cfb95b80ed4e226c9c10422e2d82a6cc06b92f9ba6a44b5')
 
 build() {
   mkdir -p build