diff --git a/jupytext-1.17.2-vendor-licenses.txt b/jupytext-1.18.1-vendor-licenses.txt
similarity index 94%
rename from jupytext-1.17.2-vendor-licenses.txt
rename to jupytext-1.18.1-vendor-licenses.txt
index 307ae0d..2d281d9 100644
--- a/jupytext-1.17.2-vendor-licenses.txt
+++ b/jupytext-1.18.1-vendor-licenses.txt
@@ -1,7 +1,7 @@
 ├─ MIT: 766
 ├─ ISC: 188
 ├─ BSD-3-Clause: 99
-├─ Apache-2.0: 55
+├─ Apache-2.0: 56
 ├─ BSD-2-Clause: 29
 ├─ BlueOak-1.0.0: 7
 ├─ (MIT OR CC0-1.0): 6
diff --git a/python-jupytext.spec b/python-jupytext.spec
index 4d1f3e2..520ea17 100644
--- a/python-jupytext.spec
+++ b/python-jupytext.spec
@@ -2,12 +2,11 @@
 #global vsuffix d
 
 Name:           python-jupytext
-Version:        1.17.2
+Version:        1.18.1
 Release:        %autorelease
 Summary:        Save Jupyter notebooks as text documents or scripts
 
 License:        MIT
-BuildArch:      noarch
 URL:            https://jupytext.readthedocs.io/
 VCS:            git:%{giturl}.git
 Source0:        %{giturl}/archive/v%{version}/jupytext-%{version}%{?vsuffix}.tar.gz
@@ -18,7 +17,13 @@ Source3:        prepare_vendor.sh
 
 # s390x builds fail due to a bug in jupyterlab
 # https://bugzilla.redhat.com/show_bug.cgi?id=2278011
-ExcludeArch:    s390x
+# ppc64le builds fail due to lack of a binary builder
+ExclusiveArch:  %{x86_64} %{arm64} noarch
+
+BuildArch:      noarch
+BuildSystem:    pyproject
+BuildOption(generate_buildrequires): -x docs,test,test-functional,test-integration
+BuildOption(install): -l jupytext jupytext_config
 
 BuildRequires:  gcc-c++
 BuildRequires:  help2man
@@ -26,17 +31,14 @@ BuildRequires:  make
 BuildRequires:  nodejs-devel
 BuildRequires:  nodejs-npm
 BuildRequires:  pandoc
-BuildRequires:  python3-devel
-BuildRequires:  %{py3_dist setuptools}
 
 # Temporary workaround for https://bugzilla.redhat.com/show_bug.cgi?id=2275382
 BuildRequires:  nodejs-full-i18n
 
-%global _desc %{expand:
-Have you always wished Jupyter notebooks were plain text documents?
-Wished you could edit them in your favorite IDE?  And get clear and
-meaningful diffs when doing version control?  Then... Jupytext may well
-be the tool you're looking for!
+%global _desc %{expand:Have you always wished Jupyter notebooks were plain text documents?  Wished
+you could edit them in your favorite IDE?  And get clear and meaningful diffs
+when doing version control?  Then... Jupytext may well be the tool you're
+looking for!
 
 Jupytext is a plugin for Jupyter that can save Jupyter notebooks as
 - Markdown files (or MyST Markdown files, or R Markdown or Quarto text
@@ -48,14 +50,16 @@ Common use cases for Jupytext are:
 - Editing, merging or refactoring notebooks in your favorite text editor
 - Applying Q&A checks on notebooks.}
 
-%description %_desc
+%description
+%_desc
 
 %package -n python3-jupytext
 Summary:        %{summary}
 # Filesystem package for the standard Jupyter paths
 Requires:       python-jupyter-filesystem
 
-%description -n python3-jupytext %_desc
+%description -n python3-jupytext
+%_desc
 
 %package -n python3-jupyterlab-jupytext
 # The jupytext project is released under the MIT license.  Bundled JavaScript:
@@ -72,7 +76,8 @@ Provides:       bundled(npm(buffer)) = 6.0.3
 Provides:       bundled(npm(ieee754)) = 1.2.1
 Provides:       bundled(npm(jupyterlab-rise)) = 0.43.1
 
-%description -n python3-jupyterlab-jupytext %_desc
+%description -n python3-jupyterlab-jupytext
+%_desc
 
 %package        doc
 # The content is MIT.  Other licenses are due to Sphinx files.
@@ -118,28 +123,25 @@ sed -i '/jupytext/d' docs/doc-requirements.txt
 # Take this package out of the test requirements
 sed -ri '/jupytext\[test(-functional)?\]/d' pyproject.toml
 
-%generate_buildrequires
+%generate_buildrequires -p
 export HATCH_BUILD_HOOKS_ENABLE=true
-%pyproject_buildrequires -x docs,test,test-functional,test-integration
 
-%build
+%build -p
 export HATCH_BUILD_HOOKS_ENABLE=true
 export YARN_CACHE_FOLDER="$PWD/jupyterlab/.package-cache"
 export npm_config_nodedir=%{_includedir}/node
 export CFLAGS='%{build_cflags} -I%{_includedir}/node'
 export CXXFLAGS='%{build_cxxflags} -I%{_includedir}/node'
 
-%pyproject_wheel
-
+%build -a
 # Build the documentation
 PYTHONPATH=$PWD %make_build -C docs html
 rm docs/_build/html/.buildinfo
 
-%install
+%install -p
 export HATCH_BUILD_HOOKS_ENABLE=true
-%pyproject_install
-%pyproject_save_files -l jupytext jupytext_config
 
+%install -a
 # Cleanup backup files
 find %{buildroot}%{_prefix} -name \*.orig -delete
 
diff --git a/sources b/sources
index 9113c9a..e7659a8 100644
--- a/sources
+++ b/sources
@@ -1,2 +1,2 @@
-SHA512 (jupytext-1.17.2-vendor.tar.xz) = b997ef8bf9ca341d37b7992d5f093c8c9fea4322830e1818a8979bdd97b3cea64266db7ca8f5ac0fd8d3aca07160e7d9a540f3ba00b9f26e3bc8cc7c5d706323
-SHA512 (jupytext-1.17.2.tar.gz) = 5c284ab96dabaedf3d94fe0216d926b78238a03fb93a1af5f9ec8747e0aa17960b645004cf39ff674999051e9c415470cec1fd3fcb305250b31f846b88519dde
+SHA512 (jupytext-1.18.1-vendor.tar.xz) = b1dcbbd21877d82b3134f604a572eee23b9bf271b54d1cafefc2b88ca0ae1cc2b9b440cec45cbb0c6de122ee25697c103999a0f01f0767d2dd7c48532db56109
+SHA512 (jupytext-1.18.1.tar.gz) = 31593c01826319bb3517e546f0c04c99f786de33aa41082d2dfd411457fccd517f93fc9ea9f809fc75fbf0c9c78eedc0d5503e02486fe602876efbaf8a50c7f2