diff --git a/noxfile.py b/noxfile.py
index d150647..e43ff10 100644
--- a/noxfile.py
+++ b/noxfile.py
@@ -177,7 +177,9 @@ def bump(session: nox.Session):
                 f"Either {fragment_file} must already exist, or two positional arguments must be provided."
             )
     install(session, "antsibull-changelog[toml]", "hatch")
-    _repl_version(session, version)
+    current_version = session.run("hatch", "version", silent=True).strip()
+    if version != current_version:
+        session.run("hatch", "version", version)
     if len(session.posargs) > 1:
         fragment = session.run(
             "python",
@@ -223,7 +225,6 @@ def publish(session: nox.Session):
     check_no_modifications(session)
     install(session, "hatch")
     session.run("hatch", "publish", *session.posargs)
-    version = session.run("hatch", "version", silent=True).strip()
-    _repl_version(session, f"{version}.post0")
+    session.run("hatch", "version", "post")
     session.run("git", "add", "pyproject.toml", external=True)
     session.run("git", "commit", "-m", "Post-release version bump.", external=True)
diff --git a/pyproject.toml b/pyproject.toml
index 73862e8..27e1468 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -8,7 +8,7 @@ build-backend = "hatchling.build"
 
 [project]
 name = "antsibull-docs-parser"
-version = "1.0.0.post0"
+dynamic = ["version"]
 description = "Python library for processing Ansible documentation markup"
 readme = "README.md"
 requires-python = ">=3.6.1"
@@ -74,6 +74,9 @@ dev = [
     "nox",
 ]
 
+[tool.hatch.version]
+path = "src/antsibull_docs_parser/__init__.py"
+
 [tool.isort]
 profile = "black"
 
diff --git a/src/antsibull_docs_parser/__init__.py b/src/antsibull_docs_parser/__init__.py
index 7547f6e..ad09609 100644
--- a/src/antsibull_docs_parser/__init__.py
+++ b/src/antsibull_docs_parser/__init__.py
@@ -2,3 +2,11 @@
 # https://www.gnu.org/licenses/gpl-3.0.txt)
 # SPDX-License-Identifier: GPL-3.0-or-later
 # SPDX-FileCopyrightText: 2020, Ansible Project
+
+"""
+Library for processing Ansible documentation markup.
+"""
+
+__version__ = "1.0.0.post0"
+
+__all__ = ("__version__",)