diff --git a/.zuul.yaml b/.zuul.yaml
index 0eed196..23bf5f6 100644
--- a/.zuul.yaml
+++ b/.zuul.yaml
@@ -1,4 +1,4 @@
 - project:
     templates:
-      - openstack-python3-ussuri-jobs
+      - openstack-python3-charm-zed-jobs
       - openstack-cover-jobs
diff --git a/bindep.txt b/bindep.txt
new file mode 100644
index 0000000..17575d9
--- /dev/null
+++ b/bindep.txt
@@ -0,0 +1,4 @@
+libffi-dev [platform:dpkg]
+libpq-dev [platform:dpkg]
+libxml2-dev [platform:dpkg]
+libxslt1-dev [platform:dpkg]
diff --git a/charmcraft.yaml b/charmcraft.yaml
index 4968216..68b3442 100644
--- a/charmcraft.yaml
+++ b/charmcraft.yaml
@@ -2,24 +2,21 @@ type: charm
 
 parts:
   charm:
-    build-packages:
-      - tox
-      - git
-      - python3-dev
-    override-build: |
-      apt-get install ca-certificates -y
-      tox -e build-reactive
-    override-stage: |
-      echo "Copying charm to staging area: $CHARMCRAFT_STAGE"
-      NAME=$(ls $CHARMCRAFT_PART_BUILD/build/builds)
-      cp -r $CHARMCRAFT_PART_BUILD/build/builds/$NAME/* $CHARMCRAFT_STAGE/
-    override-prime: |
-      # For some reason, the normal priming chokes on the fact that there's a
-      # hooks directory.
-      cp -r $CHARMCRAFT_STAGE/* .
+    source: src/
+    plugin: reactive
+    build-snaps:
+      - charm
+    build-environment:
+      - CHARM_INTERFACES_DIR: /root/project/interfaces/
+      - CHARM_LAYERS_DIR: /root/project/layers/
 
 bases:
-  - name: ubuntu
-    channel: "20.04"
-    architectures:
-      - amd64
+  - build-on:
+      - name: ubuntu
+        channel: "22.04"
+        architectures:
+          - amd64
+    run-on:
+      - name: ubuntu
+        channel: "22.04"
+        architectures: [amd64, s390x, ppc64el, arm64]
diff --git a/osci.yaml b/osci.yaml
index 6076732..d0dd4e6 100644
--- a/osci.yaml
+++ b/osci.yaml
@@ -1,46 +1,34 @@
 - project:
     templates:
-      - charm-unit-jobs-py38
-      - charm-unit-jobs-py39
+      - charm-unit-jobs-py310
     check:
       jobs:
-      - focal-basic
-      - impish-basic:
-          voting: false
-      - jammy-basic:
+      - jammy-basic
+      - kinetic-basic:
           voting: false
     vars:
       needs_charm_build: true
       charm_build_name: pacemaker-remote
       build_type: charmcraft
+      charmcraft_channel: 2.0/stable
 
-- job:
-    name: focal-basic
-    parent: func-target
-    dependencies:
-      - osci-lint
-      - tox-py38
-      - tox-py39
-      - charm-build
-    vars:
-      tox_extra_args: focal-basic
-- job:
-    name: impish-basic
-    parent: func-target
-    dependencies:
-      - osci-lint
-      - tox-py38
-      - tox-py39
-      - charm-build
-    vars:
-      tox_extra_args: impish-basic
 - job:
     name: jammy-basic
     parent: func-target
     dependencies:
       - osci-lint
-      - tox-py38
-      - tox-py39
+      - name: tox-py310
+        soft: true
       - charm-build
     vars:
       tox_extra_args: jammy-basic
+- job:
+    name: kinetic-basic
+    parent: func-target
+    dependencies:
+      - osci-lint
+      - name: tox-py310
+        soft: true
+      - charm-build
+    vars:
+      tox_extra_args: kinetic-basic
diff --git a/requirements.txt b/requirements.txt
index a68620f..b3dc23f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -8,16 +8,13 @@
 # requirements.txt
 setuptools<50.0.0  # https://github.com/pypa/setuptools/commit/04e3df22df840c6bb244e9b27bc56750c44b7c85
 
-# Build requirements
-cffi==1.14.6; python_version < '3.6'  # cffi 1.15.0 drops support for py35.
-charm-tools==2.8.3
+# NOTE: newer versions of cryptography require a Rust compiler to build,
+# see
+# * https://github.com/openstack-charmers/zaza/issues/421
+# * https://mail.python.org/pipermail/cryptography-dev/2021-January/001003.html
+#
+cryptography<3.4
+
+git+https://github.com/juju/charm-tools.git
 
 simplejson
-
-# Newer versions use keywords that didn't exist in python 3.5 yet (e.g.
-# "ModuleNotFoundError")
-# NOTE(lourot): This might look like a duplication of test-requirements.txt but
-# some tox targets use only test-requirements.txt whereas charm-build uses only
-# requirements.txt
-importlib-metadata<3.0.0; python_version < '3.6'
-importlib-resources<3.0.0; python_version < '3.6'
diff --git a/src/metadata.yaml b/src/metadata.yaml
index 7fb571e..beb71a9 100644
--- a/src/metadata.yaml
+++ b/src/metadata.yaml
@@ -7,8 +7,7 @@ description: |
 tags:
 - openstack
 series:
-- focal
-- impish
+- jammy
 requires:
   juju-info:
     interface: juju-info
diff --git a/src/tests/bundles/focal-basic.yaml b/src/tests/bundles/focal-basic.yaml
deleted file mode 100644
index a2b5993..0000000
--- a/src/tests/bundles/focal-basic.yaml
+++ /dev/null
@@ -1,37 +0,0 @@
-series: focal
-
-local_overlay_enabled: False
-
-applications:
-
-  api:
-    charm: ch:ubuntu
-    num_units: 3
-
-  hacluster:
-    charm: ch:hacluster
-    options:
-      corosync_transport: unicast
-      cluster_count: 3
-    channel: latest/edge
-
-  compute:
-    charm: ch:ubuntu
-    num_units: 1
-
-  pacemaker-remote:
-    charm: ../../../pacemaker-remote.charm
-    options:
-      enable-stonith: False
-      enable-resources: False
-
-relations:
-
-  - - 'compute:juju-info'
-    - 'pacemaker-remote:juju-info'
-
-  - - 'api:juju-info'
-    - 'hacluster:juju-info'
-
-  - - 'hacluster:pacemaker-remote'
-    - 'pacemaker-remote:pacemaker-remote'
diff --git a/src/tests/bundles/impish-basic.yaml b/src/tests/bundles/kinetic-basic.yaml
similarity index 97%
rename from src/tests/bundles/impish-basic.yaml
rename to src/tests/bundles/kinetic-basic.yaml
index 2799c1d..d786142 100644
--- a/src/tests/bundles/impish-basic.yaml
+++ b/src/tests/bundles/kinetic-basic.yaml
@@ -1,4 +1,4 @@
-series: impish
+series: kinetic
 
 local_overlay_enabled: False
 
diff --git a/src/tests/tests.yaml b/src/tests/tests.yaml
index e51d1e2..29537f8 100644
--- a/src/tests/tests.yaml
+++ b/src/tests/tests.yaml
@@ -7,15 +7,14 @@ configure:
   - zaza.charm_tests.noop.setup.basic_setup
 
 gate_bundles:
-  - focal-basic
-  - impish-basic
+  - jammy-basic
 
 smoke_bundles:
-  - focal-basic
+  - jammy-basic
 
 dev_bundles:
-  - impish-basic
   - jammy-basic
+  - kinetic-basic
 
 target_deploy_status:
   # NOTE(lourot): cs:ubuntu has now an empty status message when ready:
@@ -30,5 +29,5 @@ tests_options:
   force_deploy:
     # NOTE(lourot): cs:ubuntu doesn't support hirsute+ officially in its
     # metadata:
-    - impish-basic
     - jammy-basic
+    - kinetic-basic
diff --git a/test-requirements.txt b/test-requirements.txt
index a11a7d0..a7936e6 100644
--- a/test-requirements.txt
+++ b/test-requirements.txt
@@ -4,7 +4,6 @@
 #     https://github.com/openstack-charmers/release-tools
 #
 pyparsing<3.0.0  # aodhclient is pinned in zaza and needs pyparsing < 3.0.0, but cffi also needs it, so pin here.
-cffi==1.14.6; python_version < '3.6'  # cffi 1.15.0 drops support for py35.
 setuptools<50.0.0  # https://github.com/pypa/setuptools/commit/04e3df22df840c6bb244e9b27bc56750c44b7c85
 
 stestr>=2.2.0
@@ -13,25 +12,10 @@ stestr>=2.2.0
 # https://github.com/mtreinish/stestr/issues/145
 cliff<3.0.0
 
-# Dependencies of stestr. Newer versions use keywords that didn't exist in
-# python 3.5 yet (e.g. "ModuleNotFoundError")
-importlib-metadata<3.0.0; python_version < '3.6'
-importlib-resources<3.0.0; python_version < '3.6'
-
-# Some Zuul nodes sometimes pull newer versions of these dependencies which
-# dropped support for python 3.5:
-osprofiler<2.7.0;python_version<'3.6'
-stevedore<1.31.0;python_version<'3.6'
-debtcollector<1.22.0;python_version<'3.6'
-oslo.utils<=3.41.0;python_version<'3.6'
-
 requests>=2.18.4
 charms.reactive
 
-# Newer mock seems to have some syntax which is newer than python3.5 (e.g.
-# f'{something}'
-mock>=1.2,<4.0.0; python_version < '3.6'
-mock>=1.2; python_version >= '3.6'
+mock>=1.2
 
 nose>=1.3.7
 coverage>=3.6
diff --git a/tox.ini b/tox.ini
index 2d60b8a..bdde110 100644
--- a/tox.ini
+++ b/tox.ini
@@ -31,10 +31,8 @@ minversion = 3.18.0
 setenv = VIRTUAL_ENV={envdir}
          PYTHONHASHSEED=0
          TERM=linux
-         LAYER_PATH={toxinidir}/layers
-         INTERFACE_PATH={toxinidir}/interfaces
          JUJU_REPOSITORY={toxinidir}/build
-passenv = http_proxy https_proxy INTERFACE_PATH LAYER_PATH JUJU_REPOSITORY
+passenv = no_proxy http_proxy https_proxy JUJU_REPOSITORY
 install_command =
   {toxinidir}/pip.sh install {opts} {packages}
 allowlist_externals =
@@ -50,7 +48,7 @@ basepython = python3
 deps = -r{toxinidir}/build-requirements.txt
 commands =
     charmcraft clean
-    charmcraft -v build
+    charmcraft -v pack
     {toxinidir}/rename.sh
 
 [testenv:build-reactive]
@@ -68,35 +66,15 @@ basepython = python3
 deps = -r{toxinidir}/test-requirements.txt
 commands = stestr run --slowest {posargs}
 
-[testenv:py35]
-basepython = python3.5
-deps = -r{toxinidir}/test-requirements.txt
-commands = stestr run --slowest {posargs}
-
-[testenv:py36]
-basepython = python3.6
-deps = -r{toxinidir}/test-requirements.txt
-commands = stestr run --slowest {posargs}
-
-[testenv:py37]
-basepython = python3.7
-deps = -r{toxinidir}/test-requirements.txt
-commands = stestr run --slowest {posargs}
-
-[testenv:py38]
-basepython = python3.8
-deps = -r{toxinidir}/test-requirements.txt
-commands = stestr run --slowest {posargs}
-
-[testenv:py39]
-basepython = python3.9
+[testenv:py310]
+basepython = python3.10
 deps = -r{toxinidir}/test-requirements.txt
 commands = stestr run --slowest {posargs}
 
 [testenv:pep8]
 basepython = python3
 deps = flake8==3.9.2
-       charm-tools==2.8.3
+       git+https://github.com/juju/charm-tools.git
 commands = flake8 {posargs} src unit_tests
 
 [testenv:func-target]