diff --git a/app-metrics/prometheus/ChangeLog b/app-metrics/prometheus/ChangeLog
index f0434f8..a22e4a1 100644
--- a/app-metrics/prometheus/ChangeLog
+++ b/app-metrics/prometheus/ChangeLog
@@ -1,3 +1,8 @@
+*prometheus-2.19.1 (29 Sep 2020)
+
+  29 Sep 2020; Manuel Friedli <manuel@gentoo.org> +prometheus-2.19.1.ebuild:
+  app-metrics/prometheus: GLEP 81 conformant prometheus 2.19.1
+
 *prometheus-2.13.1 (14 Nov 2019)
 
   14 Nov 2019;  <manuel@gentoo.org> +files/prometheus-3.initd,
diff --git a/app-metrics/prometheus/Manifest b/app-metrics/prometheus/Manifest
index 3a0d7e6..3c8b094 100644
--- a/app-metrics/prometheus/Manifest
+++ b/app-metrics/prometheus/Manifest
@@ -3,6 +3,9 @@ AUX prometheus.confd 43 BLAKE2B c83afa8ad1133c9e93abd40c862ff5b3ac9a3b3c4447b915
 AUX prometheus.initd 929 BLAKE2B d48650b11b77d4d04b5458682456fb20f8085dc3efe9d0ddd2a6c75751ddae156bbb83c20082bc7b6833395602c24da61e2f7610bdff291e05e3eeb4fb651317 SHA512 504122eb8ed19beac81987b77eb78bba9b36b2ef15f28b1a542804271046e06363baf464f3c303982f647eba65fbc2b5459235f56625e1ff3fed9834937cd0d2
 AUX prometheus.service 440 BLAKE2B 81a89d51ce54e4af5a1d400cee05418e031bce5d87df5546d5e759a6f9814d16eb88266dd129d40c94c1b7d971281f45f5a63a091a8ee6110fe601b909fc5175 SHA512 db040d60eaeffe5583a2e01d0e8c855ad7585ff89627b6fa0bbeac923381ef32154b49ddf7997d8774937d317cbc705357d90a05d2eedee417f7ce6ee486b291
 DIST prometheus-2.13.1.tar.gz 15249891 BLAKE2B 35cd3c81bdb4f3a783c2ab1f1318946db5b25c94496fe351739a59259a726bf54d418d6b29efeff44c8007353ed63368819ce89ffe6a4f380b7ae216da3c4d63 SHA512 aed3b44db97cd2a67add64d13e950246b25c2b459f6b1081a6c548862c4e85c055254a0dfb94b08ac85f83dbbe30afceb1c54a8ad6f7ff1367aeb6af6d270e8a
+DIST prometheus-2.19.1-assets.tar.gz 5032055 BLAKE2B 75bc247d3dfbcccf3a9d7ef8a23fabe2d92d698670f5aabb19e1ee019e0197aa4fd49cfd53353e09a765a014af70ad860c7d1b6bce292632e5ed1175dd206ae9 SHA512 52d1f80d9ab2de778e8a0c81549ff83647d3d8af37ccf535a6fc4ac45fe29f25f6592e9b5eb137cd5ed6f6730835e4ba52b6c4c82e5b0bb2336b90c809d756de
+DIST prometheus-2.19.1.tar.gz 13343138 BLAKE2B 042f2c6e10e3d7f50b2373d9c3977db0318c8c9839e313463890ccae58c91d6d46c306d5aaeb795fb1a9649477b179999cb6b182aca9dee222d8fba557bf6d74 SHA512 a54a83b21ac8f3477e678ca365b8f04adcbe5cdd8a17d842eb9cd2e3428238841fb0492da6f4ec973f48803b0739667c734ae8a88b48d12555e23410e6461629
 EBUILD prometheus-2.13.1.ebuild 2063 BLAKE2B 87f71b82f276ab8edee18afc0b3dc6282ba2a729972e01596e50103679e0e19cfd238405871cdc5f45ed2de8415e35195dc6cd9f5db9fa456d79c4a07bfead9f SHA512 a61452a0bc74c2a7c747a37248955a22c369d0fb658b65108d1379789eed9da4592b13ba50d85f70ef6c42d4063e863aa4d7eb609e43dec49f0167379e61778d
-MISC ChangeLog 284 BLAKE2B 3beb721fab1774b5c98db088acfdc192972d6bb78d7e0329f0d9ee6bb9ac7d9ca44ec729f4d6b6bd55782a5d439cbd474af101e02ea5362aacc921b924039dbd SHA512 ea7600136b83ce75d2476cbaae5685edfeeed36a48c8aa73922f65f1273e4e94bb82811afc6998cc6b44646ea7bb486dd146ce39c025ea3598aec521b1c80f4c
+EBUILD prometheus-2.19.1.ebuild 1843 BLAKE2B f773fa2388ca4e1ab5ff2efbcb5ed8bced84940c593e87edb15b113f48e6871f0209e0974a951ff2314d36d05a7343ebe2d85bd4eaa6cc7960f9bf87f8e14d25 SHA512 1698c9362f7a02c6fd343dd85f71c0ecd232c8dc1e7832c2f89ff4c954e9582c9a7ad1a9f009fcbdef8e92d5f19c83566b4fb3a0ab3730503e0cf694b34216c1
+MISC ChangeLog 459 BLAKE2B e53d2d12bbff152386b2a8c9f133f4405920b92ecc4d9dbd425576bd6d8b95792f32751bf690f4e9daa7be9fe27a78751ed2ea0c39e7ee7ffa36271416a431b4 SHA512 6b31441e5feaace4783ccfdaa4440911514f3f7d9330731be2db52c549a13131dcea79b0b8110483850495639d6cabefa4abafd202f9ce84bd564c584683aca1
 MISC metadata.xml 334 BLAKE2B 270b8d4817af970210624443197549e469d28b03ad38d87c1d3b7da0cb59476da6394989577fd199d26bf63322d0e74474428e493c8b4969fd74a42aa82adf5b SHA512 41aaef9331d9b27b5d7e0587679199bbbe149c5a4edfa9bc9932c2ea18b2c970d96d8f07a4a33253d567baab666d58e55f928db669ee2ff5d8ef0c7cd5da1e85
diff --git a/app-metrics/prometheus/prometheus-2.19.1.ebuild b/app-metrics/prometheus/prometheus-2.19.1.ebuild
new file mode 100644
index 0000000..1e1b47f
--- /dev/null
+++ b/app-metrics/prometheus/prometheus-2.19.1.ebuild
@@ -0,0 +1,61 @@
+# Copyright 1999-2020 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=7
+inherit go-module systemd
+
+MY_PV=v${PV/_rc/-rc.}
+GIT_COMMIT=eba3fdcbf
+
+DESCRIPTION="Prometheus monitoring system and time series database"
+HOMEPAGE="https://github.com/prometheus/prometheus"
+SRC_URI="https://github.com/prometheus/prometheus/archive/${MY_PV}.tar.gz -> ${P}.tar.gz
+	https://dev.gentoo.org/~williamh/dist/${P}-assets.tar.gz"
+
+LICENSE="Apache-2.0 BSD BSD-2 ISC MIT MPL-2.0"
+SLOT="0"
+KEYWORDS="~amd64 ~arm"
+IUSE=""
+
+BDEPEND=">=dev-util/promu-0.3.0"
+DEPEND="!app-metrics/prometheus-bin"
+RDEPEND="acct-user/prometheus"
+
+PROMETHEUS_HOME="/var/lib/prometheus"
+
+RESTRICT+=" test"
+
+src_prepare() {
+	default
+	sed -i -e "s/{{.Revision}}/${GIT_COMMIT}/" .promu.yml || die
+	mv ../assets_vfsdata.go web/ui || die
+}
+
+src_compile() {
+	promu build --prefix bin -v || die
+}
+
+src_install() {
+	dobin bin/*
+	dodoc -r {documentation,{README,CHANGELOG,CONTRIBUTING}.md}
+	insinto /etc/prometheus
+	doins documentation/examples/prometheus.yml
+	insinto /usr/share/prometheus
+	doins -r console_libraries consoles
+	dosym ../../usr/share/prometheus/console_libraries /etc/prometheus/console_libraries
+	dosym ../../usr/share/prometheus/consoles /etc/prometheus/consoles
+
+	newinitd "${FILESDIR}"/prometheus.initd prometheus
+	newconfd "${FILESDIR}"/prometheus.confd prometheus
+	keepdir /var/log/prometheus
+	fowners prometheus:prometheus /var/log/prometheus
+}
+
+pkg_postinst() {
+	if has_version '<net-analyzer/prometheus-2.0.0_rc0'; then
+		ewarn "Old prometheus 1.x TSDB won't be converted to the new prometheus 2.0 format"
+		ewarn "Be aware that the old data currently cannot be accessed with prometheus 2.0"
+		ewarn "This release requires a clean storage directory and is not compatible with"
+		ewarn "files created by previous beta releases"
+	fi
+}