diff --git a/BioArchLinux/r-proxyc/PKGBUILD b/BioArchLinux/r-proxyc/PKGBUILD
index 7dc8c1729e..7276f1cdd5 100644
--- a/BioArchLinux/r-proxyc/PKGBUILD
+++ b/BioArchLinux/r-proxyc/PKGBUILD
@@ -2,10 +2,10 @@
 # Contributor: Guoyi Zhang <guoyizhang at malacology dot net>
 
 _pkgname=proxyC
-_pkgver=0.3.4
+_pkgver=0.4.0
 pkgname=r-${_pkgname,,}
 pkgver=${_pkgver//-/.}
-pkgrel=3
+pkgrel=0
 pkgdesc="Computes Proximity in Large Sparse Matrices"
 arch=(x86_64)
 url="https://cran.r-project.org/package=$_pkgname"
@@ -14,7 +14,6 @@ depends=(
   blas
   onetbb
   r-rcpp
-  r-rcppparallel
 )
 makedepends=(
   r-rcpparmadillo
@@ -32,8 +31,8 @@ optdepends=(
   r-testthat
 )
 source=("https://cran.r-project.org/src/contrib/${_pkgname}_${_pkgver}.tar.gz")
-md5sums=('e57fe4d1fd003337b06845fe6c8cd591')
-b2sums=('c35d2ec7a6f506b0fb9f5ad3e0392289d147731a1f20d065ee9bde4cb8474e95854bc78be146cb64ba8b526eedc9cd2adbb44e6ef39b3523525736b80e95f901')
+md5sums=('42557eb4e121b03858186d3cc7eea542')
+b2sums=('451afa0b9b22431f63c0c357f0633b356b434846392c40a30c5d25ac1a7a73595725a66109ee2d29e896e5188ef8c2617d42836e81fad55c37c2f01d2d9a1de2')
 
 build() {
   mkdir build
diff --git a/BioArchLinux/r-proxyc/lilac.py b/BioArchLinux/r-proxyc/lilac.py
index b5cdb057c5..711e3066ac 100644
--- a/BioArchLinux/r-proxyc/lilac.py
+++ b/BioArchLinux/r-proxyc/lilac.py
@@ -7,7 +7,10 @@ sys.path.append(os.path.normpath(f'{__file__}/../../../lilac-extensions'))
 from lilac_r_utils import r_pre_build
 
 def pre_build():
-    r_pre_build(_G)
+    r_pre_build(
+        _G,
+        expect_systemrequirements = "Intel oneAPI Threading Building Blocks",
+    )
 
 def post_build():
     git_pkgbuild_commit()
diff --git a/BioArchLinux/r-proxyc/lilac.yaml b/BioArchLinux/r-proxyc/lilac.yaml
index debeb6b9ce..af7bbe3222 100644
--- a/BioArchLinux/r-proxyc/lilac.yaml
+++ b/BioArchLinux/r-proxyc/lilac.yaml
@@ -4,7 +4,6 @@ maintainers:
   email: pekkarr@protonmail.com
 repo_depends:
 - r-rcpp
-- r-rcppparallel
 repo_makedepends:
 - r-rcpparmadillo
 - r-entropy