diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index db46d32ba..12d2c687f 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -14,6 +14,7 @@
   * change source in incomfort-client-0.4.0-r1, fixes https://git.edevau.net/onkelbeh/HomeAssistantRepository/issues/135
   * zigpy-znp-0.1.1 tries to install tests, fixes https://git.edevau.net/onkelbeh/HomeAssistantRepository/issues/174
   * let asyncssh-1.15.0 run on Python 3.8
+  * re-add pyserial-3.3 (P38)
 
 2020-09-08
   * update Plugwise-Smile-1.4.0
diff --git a/dev-python/pyserial/Manifest b/dev-python/pyserial/Manifest
index 5540498c0..2677818f0 100644
--- a/dev-python/pyserial/Manifest
+++ b/dev-python/pyserial/Manifest
@@ -1,6 +1,8 @@
 AUX mapping.patch 495 BLAKE2B f9a2493c2ed0f522000b2ddc774c931138adda0c7d6f8d53875532fed631936436f5ec8cd572e8fc47bf5d9ada2663efdd315d6102cc5ec873d198a53c75a604 SHA512 2a0a86462291ecd78d06c9b88e8971502a58efa61ad9d47f0df2c94240245a41e7bbf9bfbd93e7761560a16fe15203cf8c5c52eaf3eb24e1499b00dfec3808f8
 DIST pyserial-3.1.1.tar.gz 147535 BLAKE2B 5e882e2a957b5a14a63787d0490e336ff8ada7b211b611204a1536bfb85701259596c97d583376e42c889e70a22d28b4a606fa2ad261f7202964dd8fe5fcfd7a SHA512 05b6f893454b187757c8d01c8d3951751ba93e87aafd474fa684a24198eed22f892181bcbab40101e74b25dae612116880690e800adedaf56a5c12775ed2b8d8
+DIST pyserial-3.3.tar.gz 149032 BLAKE2B 5528ca72c6797d5862e7e6292d60e3b459d75ee2b0dadd1582e8acf6b85ecbe6155e8bebbdcb3a45ef862e635f1f1ec7b50f688ccbbf10255cfdf67276af4bf8 SHA512 57a0bcd0684530e1d60022804dd75acd5d9a9a358c92d967076884b2419bcfefae71e949f7aba1737023f6b089c993e98dd7cf6860e9402ed7e0b698953b3ac8
 DIST pyserial-3.4.tar.gz 151657 BLAKE2B cf47aba4a6f3bb2fe39d99e72907496faa1c9f37857810fef4d826cca72c361d0e43dbc33d9cf2291a589bf0193d17355d149e6eb61b4f9e28250207708ef09a SHA512 d71dffc330704e41caac6054adf192bee2f1c119691faf2ea93fe22e8e3ba000dc4a1434293f6f80d05a5577d85b96791f656e28d5c63fb0ce6a6605467a117f
 EBUILD pyserial-3.1.1.ebuild 1099 BLAKE2B 3b8c25f2f8bbdc612934c5de156432706441bb75e35fad9ff44a8dee450c954ae0668548f78d7345ac4870db9e26d487b017dc6be01a2bde659b02f7a854dc04 SHA512 3dc9aac62a40b46777520ac4d1e66ea858c040c03ed9a90d9bb5226a4606c1c47dfa81e6ae3221bc4f2e1e89990e04c4ebd39fb24150ba265ef49263a314b888
+EBUILD pyserial-3.3.ebuild 1099 BLAKE2B 3b8c25f2f8bbdc612934c5de156432706441bb75e35fad9ff44a8dee450c954ae0668548f78d7345ac4870db9e26d487b017dc6be01a2bde659b02f7a854dc04 SHA512 3dc9aac62a40b46777520ac4d1e66ea858c040c03ed9a90d9bb5226a4606c1c47dfa81e6ae3221bc4f2e1e89990e04c4ebd39fb24150ba265ef49263a314b888
 EBUILD pyserial-3.4.ebuild 1099 BLAKE2B 3b8c25f2f8bbdc612934c5de156432706441bb75e35fad9ff44a8dee450c954ae0668548f78d7345ac4870db9e26d487b017dc6be01a2bde659b02f7a854dc04 SHA512 3dc9aac62a40b46777520ac4d1e66ea858c040c03ed9a90d9bb5226a4606c1c47dfa81e6ae3221bc4f2e1e89990e04c4ebd39fb24150ba265ef49263a314b888
 MISC metadata.xml 421 BLAKE2B f3c94b0b72c3df17d9c539e8b76e1f644e0b4ae1bb3d905652b568084e449bf11cab07f27e7775031eee857095671debd28bf1d2eb8c1992c6b980620b32109b SHA512 30c1232aed930c665c2603443cbff9efbb843b1866d6a4d034a517e0669f28f1e6e7562103a8badbd8fb1efd9e69b058870b9c4fcea8fa5e74e7a1ec8ba17fde
diff --git a/dev-python/pyserial/pyserial-3.3.ebuild b/dev-python/pyserial/pyserial-3.3.ebuild
new file mode 100644
index 000000000..74ae711cd
--- /dev/null
+++ b/dev-python/pyserial/pyserial-3.3.ebuild
@@ -0,0 +1,44 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=6
+PYTHON_COMPAT=( python3_{6,7,8} )
+
+inherit distutils-r1
+
+DESCRIPTION="Python Serial Port extension"
+HOMEPAGE="https://github.com/pyserial/pyserial https://pypi.org/project/pyserial/"
+SRC_URI="mirror://pypi/${PN:0:1}/${PN}/${P}.tar.gz"
+
+LICENSE="PSF-2"
+SLOT="0"
+KEYWORDS="alpha amd64 arm arm64 hppa ia64 ~m68k ~mips ppc ppc64 s390 sparc x86"
+IUSE="doc examples"
+
+DEPEND="
+	dev-python/setuptools[${PYTHON_USEDEP}]
+	doc? ( dev-python/sphinx[${PYTHON_USEDEP}] )
+"
+
+# Usual avoid d'loading un-needed objects.inv file
+PATCHES=( "${FILESDIR}"/mapping.patch )
+
+DOCS=( CHANGES.rst README.rst )
+
+python_compile_all() {
+	use doc && emake -C documentation html
+}
+
+python_test() {
+	${EPYTHON} test/run_all_tests.py || die "Testing failed with ${EPYTHON}"
+}
+
+python_install_all() {
+	use doc && local HTML_DOCS=( documentation/_build/html/. )
+	distutils-r1_python_install_all
+	if use examples; then
+		insinto /usr/share/doc/${PF}
+		doins -r examples
+		docompress -x /usr/share/doc/${PF}/examples
+	fi
+}