diff --git a/python-poetry-core.spec b/python-poetry-core.spec
index fb2c8b6..f8bc06d 100644
--- a/python-poetry-core.spec
+++ b/python-poetry-core.spec
@@ -1,6 +1,6 @@
 Name:           python-poetry-core
-Version:        1.0.8
-Release:        3%{?dist}
+Version:        1.2.0
+Release:        1%{?dist}
 Summary:        Poetry PEP 517 Build Backend
 
 # We bundle a lot of libraries with poetry, which itself is under MIT license.
@@ -8,14 +8,15 @@ Summary:        Poetry PEP 517 Build Backend
 
 # attrs: MIT
 # jsonschema: MIT
-# lark-parser: MIT
+# lark: MIT
 # packaging: ASL 2.0 or BSD
+# pkgutil-resolve-name: MIT
 # pyparsing: MIT
 # pyrsistent: MIT
-# six: MIT
 # tomlkit: MIT
+# typing-extensions: Python
 
-License:        MIT and (ASL 2.0 or BSD)
+License:        MIT and (ASL 2.0 or BSD) and Python
 URL:            https://github.com/python-poetry/poetry-core
 Source0:        %{url}/archive/%{version}/poetry-core-%{version}.tar.gz
 
@@ -32,6 +33,7 @@ BuildRequires:  python3-devel
 BuildRequires:  pyproject-rpm-macros
 
 # for tests (only specified via poetry poetry.dev-dependencies with pre-commit etc.)
+BuildRequires:  python3-build
 BuildRequires:  python3-pytest
 BuildRequires:  python3-pytest-mock
 BuildRequires:  python3-pep517
@@ -54,15 +56,16 @@ Summary:        %{summary}
 
 # Previous versions of poetry included poetry-core in it
 Conflicts:      python%{python3_version}dist(poetry) < 1.1
-# The bundled versions are taken from poetry/core/_vendor/vendor.txt
-Provides:       bundled(python3dist(attrs)) = 20.3
-Provides:       bundled(python3dist(jsonschema)) = 3.2
-Provides:       bundled(python3dist(lark-parser)) = 0.9
-Provides:       bundled(python3dist(packaging)) = 20.9
-Provides:       bundled(python3dist(pyparsing)) = 2.4.7
-Provides:       bundled(python3dist(pyrsistent)) = 0.16.1
-Provides:       bundled(python3dist(six)) = 1.15
-Provides:       bundled(python3dist(tomlkit)) = 0.7
+# The bundled versions are taken from src/poetry/core/_vendor/vendor.txt
+Provides:       bundled(python3dist(attrs)) = 22.1
+Provides:       bundled(python3dist(jsonschema)) = 4.10
+Provides:       bundled(python3dist(lark)) = 1.1.2
+Provides:       bundled(python3dist(packaging)) = 21.3
+Provides:       bundled(python3dist(pkgutil-resolve-name)) = 1.3.10
+Provides:       bundled(python3dist(pyparsing)) = 3.0.9
+Provides:       bundled(python3dist(pyrsistent)) = 0.18.1
+Provides:       bundled(python3dist(tomlkit)) = 0.11.4
+Provides:       bundled(python3dist(typing-extensions)) = 4.3.0
 
 %description -n python3-poetry-core %_description
 
@@ -70,12 +73,6 @@ Provides:       bundled(python3dist(tomlkit)) = 0.7
 %prep
 %autosetup -p1 -n poetry-core-%{version}
 
-# We sed out shebang from non-execeutable-script to fix rpmlint error.
-# This can be removed once we again devendor python-poetry-core and
-# the Patch1 is enabled again.
-# Upstream PR: https://github.com/Julian/jsonschema/pull/833
-sed -i '1!b;/^#!/d' poetry/core/_vendor/jsonschema/benchmarks/issue232.py
-sed -i '1!b;/^#!/d' poetry/core/_vendor/jsonschema/benchmarks/json_schema_test_suite.py
 
 %generate_buildrequires
 %pyproject_buildrequires -r
@@ -105,6 +102,9 @@ sed -i '1!b;/^#!/d' poetry/core/_vendor/jsonschema/benchmarks/json_schema_test_s
 
 
 %changelog
+* Fri Sep 30 2022 Tomáš Hrnčiar <thrnciar@redhat.com> - 1.2.0-1
+- Update to 1.2.0
+
 * Fri Jul 22 2022 Fedora Release Engineering <releng@fedoraproject.org> - 1.0.8-3
 - Rebuilt for https://fedoraproject.org/wiki/Fedora_37_Mass_Rebuild
 
diff --git a/sources b/sources
index fb5a8c9..81b9c14 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (poetry-core-1.0.8.tar.gz) = 6dfed1e1124c37a5f0ec535ede8848e25466da3df6fa6629f6330ce32f05a4d82725d64407e5bcf294d6e467b52966642505ee29f563d3794c4e7aca78045285
+SHA512 (poetry-core-1.2.0.tar.gz) = f6d79d7d66a25aa127b5decf46df861ecc101af0438b892196505b4ece5cc55f6ff8796eb603789b3259d213162236b7698305523b2eda414ad1f3a5b659eab9