diff --git a/backports/py3-typing-extensions/APKBUILD b/backports/py3-typing-extensions/APKBUILD
index 93d3443..a90013d 100644
--- a/backports/py3-typing-extensions/APKBUILD
+++ b/backports/py3-typing-extensions/APKBUILD
@@ -1,35 +1,28 @@
 # Contributor: Leo <thinkabit.ukim@gmail.com>
-# Maintainer: Patrycja Rosa <alpine@ptrcnull.me>
+# Maintainer: psykose <alice@ayaya.dev>
 pkgname=py3-typing-extensions
-pkgver=4.12.2
+pkgver=4.5.0
 pkgrel=0
 pkgdesc="Backported and Experimental Type Hints for Python 3.5+"
-url="https://github.com/python/typing_extensions"
+url="https://github.com/python/typing/blob/master/typing_extensions/README.rst"
 arch="noarch"
 license="Python-2.0"
-makedepends="py3-gpep517 py3-flit-core"
-checkdepends="python3-tests"
-subpackages="$pkgname-pyc"
-source="https://github.com/python/typing_extensions/archive/$pkgver/typing_extensions-$pkgver.tar.gz"
-builddir="$srcdir/typing_extensions-$pkgver"
+depends="python3"
+makedepends="py3-build py3-flit-core py3-installer py3-wheel"
+checkdepends="py3-tox python3-tests"
+source="https://github.com/python/typing/archive/$pkgver/typing-$pkgver.tar.gz"
+builddir="$srcdir/typing-$pkgver/typing_extensions"
 
 build() {
-	gpep517 build-wheel \
-		--wheel-dir .dist \
-		--output-fd 3 3>&1 >&2
+	python3 -m build --no-isolation --wheel
 }
 
 check() {
-	python3 -m venv --clear --without-pip --system-site-packages .testenv
-	gpep517 install-wheel --destdir .testenv --prefix '' .dist/*.whl
-	.testenv/bin/python3 src/test_typing_extensions.py
+	tox --sitepackages -e py310
 }
 
 package() {
 	python3 -m installer -d "$pkgdir" \
-		.dist/typing_extensions-$pkgver-py3-none-any.whl
+		dist/typing_extensions-$pkgver-py3-none-any.whl
 }
 
-sha512sums="
-925f5936faeec2a799b42e555900fa7121fb3841f80dfbbdc931abe76b1ea6e600c5fe9b1f91dfb43ae049d60bc7ed9f12e2c25be6f9bcc7b32bbbbdda3055d6  typing_extensions-4.12.2.tar.gz
-"