diff --git a/pyproject.toml b/pyproject.toml
index 12f6b04..e08a5cf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -14,6 +14,8 @@ classifiers = [
   "Programming Language :: Python :: 3.10",
   "Programming Language :: Python :: 3.11",
   "Programming Language :: Python :: 3.12",
+  "Programming Language :: Python :: 3.13",
+  "Programming Language :: Python :: 3.14",
   "Topic :: Software Development",
 ]
 requires-python = ">=3.9"
diff --git a/taskcluster/docker/python/Dockerfile b/taskcluster/docker/python/Dockerfile
index 9b8bd45..dadbe38 100644
--- a/taskcluster/docker/python/Dockerfile
+++ b/taskcluster/docker/python/Dockerfile
@@ -29,7 +29,7 @@ ENV SHELL=/bin/bash \
     PATH=/builds/worker/.local/bin:$PATH
 
 # uv
-COPY --from=ghcr.io/astral-sh/uv:0.4.16 /uv /bin/uv
+COPY --from=ghcr.io/astral-sh/uv:0.9.3 /uv /bin/uv
 # %ARG PYTHON_VERSIONS
 RUN uv python install $PYTHON_VERSIONS
 RUN chown -R worker:worker /builds/worker
diff --git a/taskcluster/kinds/complete/kind.yml b/taskcluster/kinds/complete/kind.yml
new file mode 100644
index 0000000..bb36318
--- /dev/null
+++ b/taskcluster/kinds/complete/kind.yml
@@ -0,0 +1,23 @@
+# This Source Code Form is subject to the terms of the Mozilla Public
+# License, v. 2.0. If a copy of the MPL was not distributed with this
+# file, You can obtain one at http://mozilla.org/MPL/2.0/.
+---
+loader: taskgraph.loader.transform:loader
+
+transforms:
+  - taskgraph.transforms.from_deps
+  - taskgraph.transforms.task
+
+kind-dependencies:
+  - check
+  - test
+
+tasks:
+  pr:
+    description: Ensures required PR tasks have completed
+    run-on-tasks-for: ["github-pull-request", "github-pull-request-untrusted"]
+    worker-type: succeed
+    from-deps:
+      group-by: all
+      set-name: false
+      unique-kinds: false
diff --git a/taskcluster/kinds/docker-image/kind.yml b/taskcluster/kinds/docker-image/kind.yml
index 2644bd7..f60329a 100644
--- a/taskcluster/kinds/docker-image/kind.yml
+++ b/taskcluster/kinds/docker-image/kind.yml
@@ -10,4 +10,4 @@ tasks:
     fetch: {}
     python:
         args:
-            PYTHON_VERSIONS: "3.12 3.11 3.10 3.9"
+            PYTHON_VERSIONS: "3.14 3.13 3.12 3.11 3.10 3.9"
diff --git a/taskcluster/kinds/test/kind.yml b/taskcluster/kinds/test/kind.yml
index 467d8e5..658ec54 100644
--- a/taskcluster/kinds/test/kind.yml
+++ b/taskcluster/kinds/test/kind.yml
@@ -21,7 +21,7 @@ tasks:
     description: "Run Python unit tests."
     attributes:
       artifact_prefix: public
-    python-versions: ["3.12", "3.11", "3.10", "3.9"]
+    python-versions: ["3.14", "3.13", "3.12", "3.11", "3.10", "3.9"]
     run:
       command: >-
         uv run coverage run --data-file $MOZ_ARTIFACT_DIR/coverage --context=py$UV_PYTHON -m pytest -vv