diff --git a/dev-ruby/omniauth/Manifest b/dev-ruby/omniauth/Manifest
index c8f809b5a41e5..5e06235f82a38 100644
--- a/dev-ruby/omniauth/Manifest
+++ b/dev-ruby/omniauth/Manifest
@@ -1 +1,2 @@
 DIST omniauth-2.1.2.tar.gz 31631 BLAKE2B 73faa82db781c3980eae55f3fa8a099d3ec0769326201f51f57840566a3b2da2331bdaaddd4ef17d957e389ea8863fc7bfdc11f0278753c27f3a7eabc01ec138 SHA512 bd0c65af815502f3df2dbb104ede35de093c6cc6f25285e9bbcdd58df3d31ac6c05d410888a40aca86a00b17a4851856d158593b06415e8b69ff426f171b9857
+DIST omniauth-2.1.3.tar.gz 31694 BLAKE2B 83fa6ee6f9c829e2027f3526f034bf868d08970a56e6189b793855983eed5486c8bdd046cdd88fc18e17230f3de79e790b8faf865fb2993497bf05e1f77a88b2 SHA512 b75a48f323a3ed1268f73500fa8d1a19052b4d613f39fc715dcb0e893c8a88571d3fec8a6d96fabe45835da4af7c3f68215fc218102e8f0eda54df78c483c9de
diff --git a/dev-ruby/omniauth/omniauth-2.1.3.ebuild b/dev-ruby/omniauth/omniauth-2.1.3.ebuild
new file mode 100644
index 0000000000000..a0eb3afeb7ff8
--- /dev/null
+++ b/dev-ruby/omniauth/omniauth-2.1.3.ebuild
@@ -0,0 +1,50 @@
+# Copyright 1999-2025 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+EAPI=8
+USE_RUBY="ruby31 ruby32 ruby33"
+
+RUBY_FAKEGEM_EXTRADOC="README.md"
+RUBY_FAKEGEM_RECIPE_TEST="rspec3"
+RUBY_FAKEGEM_DOCDIR="doc"
+
+RUBY_FAKEGEM_GEMSPEC="${PN}.gemspec"
+
+inherit ruby-fakegem
+
+DESCRIPTION="A generalized Rack framework for multiple-provider authentication"
+HOMEPAGE="https://github.com/omniauth/omniauth"
+SRC_URI="https://github.com/omniauth/omniauth/archive/v${PV}.tar.gz -> ${P}.tar.gz"
+LICENSE="MIT"
+
+SLOT="$(ver_cut 1)"
+KEYWORDS="~amd64"
+IUSE="doc test"
+
+ruby_add_rdepend "
+	>=dev-ruby/rack-2.2.3
+	dev-ruby/rack-protection
+	>=dev-ruby/hashie-3.4.6:*"
+ruby_add_bdepend "doc? ( dev-ruby/yard )
+	test? ( dev-ruby/rack-test dev-ruby/rack:2.2 dev-ruby/rack-protection:3 )"
+
+all_ruby_prepare() {
+	sed -i -e '/[Bb]undler/d' \
+		Rakefile ${PN}.gemspec || die "sed failed"
+	sed -e '/RUBY_VERSION/,/^end/ s:^:#: ; /freeze/ s:^:#:' \
+		-e '2igem "rack", "<3"; gem "rack-protection", "~> 3.0"' \
+		-e '/simplecov/,/^end/ s:^:#:' \
+		-i spec/helper.rb || die "sed failed"
+	# maruku fails, resorting to default markdown implementation
+	sed -i -e '/maruku/d' .yardopts || die "sed failed"
+
+	sed -i -e '/s.files/d' ${RUBY_FAKEGEM_GEMSPEC} || die
+}
+
+all_ruby_compile() {
+	all_fakegem_compile
+
+	if use doc ; then
+		yard || die "yard failed"
+	fi
+}