diff --git a/dev-python/slixmpp/slixmpp-1.8.4.recipe b/dev-python/slixmpp/slixmpp-1.8.6.recipe
similarity index 59%
rename from dev-python/slixmpp/slixmpp-1.8.4.recipe
rename to dev-python/slixmpp/slixmpp-1.8.6.recipe
index b735671f7..e29efcf80 100644
--- a/dev-python/slixmpp/slixmpp-1.8.4.recipe
+++ b/dev-python/slixmpp/slixmpp-1.8.6.recipe
@@ -6,11 +6,11 @@ Slixmpp's goals is to only rewrite the core of the library (the low level \
 socket handling, the timers, the events dispatching) in order to remove all \
 threads."
 HOMEPAGE="https://codeberg.org/poezio/slixmpp"
-COPYRIGHT="2010-2020 Nathanael C. Fritz"
+COPYRIGHT="2010 Nathanael C. Fritz"
 LICENSE="MIT"
 REVISION="1"
 SOURCE_URI="https://files.pythonhosted.org/packages/source/${portName:0:1}/$portName/$portName-$portVersion.tar.gz"
-CHECKSUM_SHA256="406f1f4bab7e7573dd559a441027d3de33d17bba354bcf20ddc6aafba272286b"
+CHECKSUM_SHA256="60afcaa7c95a0fb9e7f1159cb70464a5558806d7abae29cd31e3fc883f9b8b0b"
 
 ARCHITECTURES="any"
 
@@ -27,8 +27,7 @@ BUILD_REQUIRES="
 
 PYTHON_VERSIONS=(3.10)
 
-for i in "${!PYTHON_VERSIONS[@]}"; do
-	pythonVersion=${PYTHON_VERSIONS[$i]}
+for pythonVersion in ${PYTHON_VERSIONS[@]}; do
 	pythonPackage=python${pythonVersion//.}
 
 	eval "PROVIDES_${pythonPackage}=\"
@@ -42,28 +41,36 @@ for i in "${!PYTHON_VERSIONS[@]}"; do
 		cmd:python$pythonVersion
 		\""
 	BUILD_REQUIRES+="
+		build_$pythonPackage
+		installer_$pythonPackage
 		setuptools_$pythonPackage
+		wheel_$pythonPackage
 		"
 	BUILD_PREREQUIRES+="
 		cmd:python$pythonVersion
 		"
 done
 
+BUILD()
+{
+	# This is an "any" package, "building" it will create a
+	# "$portBaseName-$portVersion-py3-none-any.whl" file that can be installed
+	# on multiple Python versions, so we only need to build once.
+	python=python${PYTHON_VERSIONS[0]}
+
+	$python -m build --wheel --skip-dependency-check --no-isolation
+}
+
 INSTALL()
 {
-	for i in "${!PYTHON_VERSIONS[@]}"; do
-		pythonVersion=${PYTHON_VERSIONS[$i]}
+	for pythonVersion in ${PYTHON_VERSIONS[@]}; do
 		pythonPackage=python${pythonVersion//.}
 
 		python=python$pythonVersion
-		installLocation=$prefix/lib/$python/vendor-packages/
-		export PYTHONPATH=$installLocation:$PYTHONPATH
 
-		mkdir -p $installLocation
-		rm -rf build
-
-		$python setup.py build install \
-			--root=/ --prefix=$prefix
+		# wheel filename has the pattern: $portBaseName-$portVersion-*-none-any.whl
+		# with the asterisk being: "py2-py3" or "py3".
+		$python -m installer --p $prefix dist/$portName-$portVersion-*-none-any.whl
 
 		packageEntries $pythonPackage \
 			$prefix/lib/python*