diff --git a/README.md b/README.md
index 66116d9..5fa20d9 100644
--- a/README.md
+++ b/README.md
@@ -10,7 +10,7 @@ To learn how to use this template:
 If you just want to jump in and get started:
 
 1. Replace `function-template-python` with your function's name in
-   `pyproject.toml` and `package/crossplane.yaml`.
+   `package/crossplane.yaml`.
 1. Add your logic to `RunFunction` in `function/fn.py`
 1. Add tests for your logic in `test/test_fn.py`
 1. Update this file, `README.md`, to be about your function!
@@ -35,4 +35,4 @@ $ crossplane xpkg build -f package --embed-runtime-image=runtime
 [functions]: https://docs.crossplane.io/latest/concepts/composition-functions
 [python]: https://python.org
 [docker]: https://www.docker.com
-[cli]: https://docs.crossplane.io/latest/cli
\ No newline at end of file
+[cli]: https://docs.crossplane.io/latest/cli
diff --git a/function/__version__.py b/function/__version__.py
new file mode 100644
index 0000000..528b4be
--- /dev/null
+++ b/function/__version__.py
@@ -0,0 +1,18 @@
+# Copyright 2023 The Crossplane Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+"""The version of the function."""
+
+# This is set at build time, using "hatch version"
+__version__ = "0.0.0"
diff --git a/pyproject.toml b/pyproject.toml
index b54f560..85b0f23 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,9 +1,9 @@
 [build-system]
-requires = ["hatchling", "hatch-vcs"]
+requires = ["hatchling"]
 build-backend = "hatchling.build"
 
 [project]
-name = "function-template-python"
+name = "function"
 description = 'A composition function'
 readme = "README.md"
 requires-python = ">=3.11"
@@ -17,17 +17,9 @@ classifiers = [
 ]
 
 dependencies = [
-  # TODO(negz): Push to PyPI instead. We're currently waiting on our request
-  # for a new PyPI org for Crossplane to be approved. Once we're using a PyPI
-  # package (e.g. a wheel), confirm that run_function_pb2.pyi is installed. This
-  # interface file makes working with RunFunctionRequest and RunFunctionResponse
-  # a lot easier, since it contains all the type metadata.
-  "function-sdk-python @ git+https://github.com/crossplane/function-sdk-python",
-
-  # Pin at least the things we import directly.
+  "crossplane-function-sdk-python==0.1.0",
   "click==8.1.7",
   "grpcio==1.60.0",
-  "protobuf==4.25.1",
 ]
 
 dynamic = ["version"]
@@ -44,10 +36,8 @@ function = "function.main:cli"
 packages = ["function"]
 
 [tool.hatch.version]
-source = "vcs"
-
-[tool.hatch.metadata]
-allow-direct-references = true
+path = "function/__version__.py"
+validate-bump = false            # Allow going from 0.0.0.dev0+x to 0.0.0.dev0+y.
 
 [tool.hatch.envs.default]
 type = "virtual"