diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 55e8a44..89acaae 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,13 +1,7 @@
 include:
-- file: /r4.1/gitlab-base.yml
+- file: /r4.3/gitlab-base.yml
   project: QubesOS/qubes-continuous-integration
-- file: /r4.1/gitlab-dom0.yml
+- file: /r4.3/gitlab-host.yml
   project: QubesOS/qubes-continuous-integration
-- file: /r4.1/gitlab-vm.yml
-  project: QubesOS/qubes-continuous-integration
-- file: /r4.2/gitlab-base.yml
-  project: QubesOS/qubes-continuous-integration
-- file: /r4.2/gitlab-host.yml
-  project: QubesOS/qubes-continuous-integration
-- file: /r4.2/gitlab-vm.yml
+- file: /r4.3/gitlab-vm.yml
   project: QubesOS/qubes-continuous-integration
diff --git a/.qubesbuilder b/.qubesbuilder
index 3c03166..e842345 100644
--- a/.qubesbuilder
+++ b/.qubesbuilder
@@ -9,7 +9,10 @@ vm:
   deb:
     build:
     - debian-pkg/debian
+vm-jammy:
+  deb:
+    build: []
 source:
   files:
-  - url: https://files.pythonhosted.org/packages/source/q/qasync/qasync-0.23.0.tar.gz
-    sha256: qasync-0.23.0.tar.gz.sha256
+  - url: https://files.pythonhosted.org/packages/source/q/qasync/qasync-@VERSION@.tar.gz
+    sha256: qasync-@VERSION@.tar.gz.sha256
diff --git a/debian-pkg/debian/changelog b/debian-pkg/debian/changelog
index 4949c3f..874ea27 100644
--- a/debian-pkg/debian/changelog
+++ b/debian-pkg/debian/changelog
@@ -1,3 +1,13 @@
+python-qasync (0.27.1-1) unstable; urgency=medium
+
+  * CI: switch to R4.3
+  * Use VERSION placeholder in .qubesbuilder
+  * deb: Adjust packaging for poetry build
+  * rpm: Adjust build for poetry build
+  * Disable build on Ubuntu Jammy
+
+ -- Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>  Tue, 29 Oct 2024 15:39:41 +0100
+
 python-qasync (0.23.0-2) unstable; urgency=medium
 
   [ Frédéric Pierret (fepitre) ]
diff --git a/debian-pkg/debian/compat b/debian-pkg/debian/compat
index ec63514..b1bd38b 100644
--- a/debian-pkg/debian/compat
+++ b/debian-pkg/debian/compat
@@ -1 +1 @@
-9
+13
diff --git a/debian-pkg/debian/control b/debian-pkg/debian/control
index 57ea6de..8a24e5b 100644
--- a/debian-pkg/debian/control
+++ b/debian-pkg/debian/control
@@ -3,8 +3,13 @@ Section: python
 Priority: optional
 Maintainer: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
 Build-Depends:
+ pybuild-plugin-pyproject,
+ python3-poetry-core,
  python3-pyqt5,
- python3-setuptools, python3-all, dh-python, debhelper (>= 9)
+ python3-setuptools,
+ python3-all,
+ dh-python,
+ debhelper (>= 13)
 Standards-Version: 3.9.5
 Homepage: https://github.com/CabbageDevelopment/qasync
 Vcs-Git: https://github.com/CabbageDevelopment/qasync
diff --git a/python-qasync.spec.in b/python-qasync.spec.in
index 9191bd8..dba2f98 100644
--- a/python-qasync.spec.in
+++ b/python-qasync.spec.in
@@ -12,7 +12,8 @@ Source0:        %{pypi_source}
 BuildArch:      noarch
 
 BuildRequires:  python%{python3_pkgversion}-devel
-BuildRequires:  python%{python3_pkgversion}-setuptools
+BuildRequires:  python%{python3_pkgversion}-pip
+BuildRequires:  python%{python3_pkgversion}-poetry-core >= 1.5.0
 
 %description
 qasync allows you to use coroutines in PyQt/PySide applications by
@@ -36,16 +37,16 @@ predecessors.
 rm -rf %{pypi_name}.egg-info
 
 %build
-%py3_build
+%pyproject_wheel
 
 %install
-%py3_install
+%pyproject_install
 
-%files -n python%{python3_pkgversion}-%{pypi_name}
+%pyproject_save_files qasync
+
+%files -n python%{python3_pkgversion}-%{pypi_name} -f %{pyproject_files}
 %license LICENSE
 %doc README.md
-%{python3_sitelib}/%{pypi_name}
-%{python3_sitelib}/%{pypi_name}-%{version}-py%{python3_version}.egg-info
 
 %changelog
 @CHANGELOG@
diff --git a/qasync-0.23.0.tar.gz.sha256 b/qasync-0.23.0.tar.gz.sha256
deleted file mode 100644
index 2b21d07..0000000
--- a/qasync-0.23.0.tar.gz.sha256
+++ /dev/null
@@ -1 +0,0 @@
-8965ec313e0107148d98e8ac1e77a77dce74de3cd97055a1aa62d513a3793a14
diff --git a/qasync-0.27.1.tar.gz.sha256 b/qasync-0.27.1.tar.gz.sha256
new file mode 100644
index 0000000..713cb18
--- /dev/null
+++ b/qasync-0.27.1.tar.gz.sha256
@@ -0,0 +1 @@
+8dc768fd1ee5de1044c7c305eccf2d39d24d87803ea71189d4024fb475f4985f
diff --git a/rel b/rel
index 0cfbf08..d00491f 100644
--- a/rel
+++ b/rel
@@ -1 +1 @@
-2
+1
diff --git a/version b/version
index ca222b7..83b4730 100644
--- a/version
+++ b/version
@@ -1 +1 @@
-0.23.0
+0.27.1