diff --git a/BioArchLinux/udunits/PKGBUILD b/BioArchLinux/udunits/PKGBUILD
index 5e63ff2037..92237eeab4 100644
--- a/BioArchLinux/udunits/PKGBUILD
+++ b/BioArchLinux/udunits/PKGBUILD
@@ -1,4 +1,5 @@
-# Maintainer:  Martin C. Doege <mdoege at compuserve dot com>
+# Maintainer:  Pekka Ristola <pekkarr [at] protonmail [dot] com>
+# Contributor: Martin C. Doege <mdoege at compuserve dot com>
 # Contributor: TDY <tdy@archlinux.info>
 # Contributor: Kaiting Chen <kaitocracy@gmail.com>
 # Contributor: Anton Bazhenov <anton.bazhenov at gmail>
@@ -7,28 +8,26 @@ pkgname=udunits
 pkgver=2.2.28
 pkgrel=5
 pkgdesc="A tool for calculations of physical quantities"
-arch=('i686' 'x86_64')
+arch=(x86_64)
 url="http://www.unidata.ucar.edu/software/udunits/"
-license=('MIT')
-depends=('expat')
-options=('!libtool')
-install=udunits.install
-source=(https://artifacts.unidata.ucar.edu/repository/downloads-udunits/$pkgver/$pkgname-$pkgver.tar.gz)
+license=(custom)
+depends=(expat)
+source=("https://artifacts.unidata.ucar.edu/repository/downloads-udunits/$pkgver/$pkgname-$pkgver.tar.gz")
 sha256sums=('590baec83161a3fd62c00efa66f6113cec8a7c461e3f61a5182167e0cc5d579e')
 
 build() {
-  cd "$srcdir/$pkgname-$pkgver"
+  cd "$pkgname-$pkgver"
   ./configure --prefix=/usr --disable-static
   make
 }
 
 package() {
-  cd "$srcdir/$pkgname-$pkgver"
+  cd "$pkgname-$pkgver"
   make DESTDIR="$pkgdir" install
-  ln -s libudunits2.so "$pkgdir/usr/lib/libudunits.so"
-  ln -s libudunits2.so.0 "$pkgdir/usr/lib/libudunits.so.0"
-  ln -s libudunits2.so.0.1.0 "$pkgdir/usr/lib/libudunits.so.0.1.0"
-  install -Dm0644 COPYRIGHT "$pkgdir/usr/share/licenses/$pkgname/LICENSE"
+  install -Dm644 -t "$pkgdir/usr/share/licenses/$pkgname" COPYRIGHT
+  cd "$pkgdir/usr/lib"
+  local _lib
+  for _lib in libudunits2.so*; do
+    ln -s "$_lib" "${_lib/#libudunits2/libudunits}"
+  done
 }
-
-# vim:set ts=2 sw=2 et:
diff --git a/BioArchLinux/udunits/lilac.py b/BioArchLinux/udunits/lilac.py
old mode 100755
new mode 100644
index 19737b8d62..972c0d45d2
--- a/BioArchLinux/udunits/lilac.py
+++ b/BioArchLinux/udunits/lilac.py
@@ -1,12 +1,9 @@
 #!/usr/bin/env python3
-
 from lilaclib import *
 
-
 def pre_build():
-  update_pkgver_and_pkgrel(_G.newver.lstrip('v'))
+    update_pkgver_and_pkgrel(_G.newver)
+    run_cmd(['updpkgsums'])
 
 def post_build():
-  git_pkgbuild_commit()
-# vim:set ts=2 sw=2 et:
-
+    git_pkgbuild_commit()
diff --git a/BioArchLinux/udunits/lilac.yaml b/BioArchLinux/udunits/lilac.yaml
old mode 100755
new mode 100644
index 5982357745..a43c5145cd
--- a/BioArchLinux/udunits/lilac.yaml
+++ b/BioArchLinux/udunits/lilac.yaml
@@ -1,10 +1,13 @@
-maintainers:
-  - github: starsareintherose
-    email: kuoi@bioarchlinux.org
 build_prefix: extra-x86_64
+maintainers:
+- github: pekkarr
+  email: pekkarr@protonmail.com
 update_on:
-  - source: regex
-    url: "https://artifacts.unidata.ucar.edu/service/rest/repository/browse/downloads-udunits/"
-    regex: href="(\d+.\d+.\d+)/"
-# vim:set ts=2 sw=2 et:
-
+- source: regex
+  url: "https://artifacts.unidata.ucar.edu/service/rest/repository/browse/downloads-udunits/"
+  regex: href="(\d+.\d+.\d+)/"
+- source: alpm
+  alpm: expat
+  repo: core
+  provided: libexpat.so
+  strip_release: true
diff --git a/BioArchLinux/udunits/udunits.install b/BioArchLinux/udunits/udunits.install
deleted file mode 100644
index f73e2ea7fc..0000000000
--- a/BioArchLinux/udunits/udunits.install
+++ /dev/null
@@ -1,22 +0,0 @@
-infodir=/usr/share/info
-filelist=(udunits2.info udunits2lib.info udunits2prog.info)
-
-post_install() {
-  [[ -x usr/bin/install-info ]] || return 0
-  for file in "${filelist[@]}"; do
-    install-info "$infodir/$file.gz" "$infodir/dir" 2> /dev/null
-  done
-}
-
-post_upgrade() {
-  post_install "$1"
-}
-
-pre_remove() {
-  [[ -x usr/bin/install-info ]] || return 0
-  for file in "${filelist[@]}"; do
-    install-info --delete "$infodir/$file.gz" "$infodir/dir" 2> /dev/null
-  done
-}
-
-# vim:set ts=2 sw=2 et: