diff --git a/trunk/PKGBUILD b/trunk/PKGBUILD
index 18bf7ee..8d1c8cd 100644
--- a/trunk/PKGBUILD
+++ b/trunk/PKGBUILD
@@ -17,8 +17,8 @@ url="https://vagrantup.com"
 license=('MIT')
 options=('!emptydirs')
 depends=('curl' 'libarchive' 'libssh2' 'libxml2' 'libxslt' 'rsync'
-         'ruby2.7' 'xz' 'perl')
-makedepends=('git' 'go')
+         'ruby' 'xz' 'perl')
+makedepends=('git' 'go' 'rubygems')
 conflicts=('vagrant-substrate')
 replaces=('vagrant-substrate')
 source=($pkgname-$pkgver.tar.gz::https://github.com/mitchellh/$pkgname/archive/v$pkgver.tar.gz
@@ -29,12 +29,11 @@ md5sums=('0738a0384ccd9cbf4d047638ea493625'
 prepare() {
   cd vagrant-installers
 
-  sed -i 's/rubyPath = "ruby"$/rubyPath = "ruby-2.7"/' substrate/launcher/main.go
 }
 
 build() {
   cd $pkgname-$pkgver
-  gem-2.7 build $pkgname.gemspec
+  gem build $pkgname.gemspec
 
   export GO111MODULE=off # golang 1.16 uses modules by default and packages below fail to compile
   cd "$srcdir"/vagrant-installers/substrate/launcher
@@ -60,7 +59,7 @@ package() {
 
   GEM_PATH="$EMBEDDED_DIR"/gems/$pkgver GEM_HOME="$GEM_PATH" \
   GEMRC="$EMBEDDED_DIR"/etc/gemrc \
-    gem-2.7 install $pkgname-$pkgver.gem --no-document --prerelease
+    gem install $pkgname-$pkgver.gem --no-document --prerelease
 
   install -Dm755 "$INSTALLERS_DIR"/launcher/vagrant \
     "$pkgdir"/opt/$pkgname/bin/$pkgname