diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 890ff25..b46eab9 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 0.6.2
+current_version = 0.6.3
 files = setup.py parse_type/__init__.py .bumpversion.cfg
 commit = False
 tag = False
diff --git a/.github/workflows/manual-release-to-pypi.yml b/.github/workflows/manual-release-to-pypi.yml
deleted file mode 100644
index 73dc558..0000000
--- a/.github/workflows/manual-release-to-pypi.yml
+++ /dev/null
@@ -1,65 +0,0 @@
-# -- WORKFLOW: Publish/release this package on PyPI
-# SEE:
-#   * https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
-#   * https://docs.github.com/en/actions/use-cases-and-examples/building-and-testing/building-and-testing-python#publishing-to-pypi
-#
-#   * https://docs.github.com/en/actions/writing-workflows
-#   * https://docs.github.com/en/actions/writing-workflows/choosing-when-your-workflow-runs
-#   * https://docs.github.com/en/actions/writing-workflows/choosing-when-your-workflow-runs/events-that-trigger-workflows#release
-#
-# GITHUB ACTIONS:
-#   * https://github.com/actions/checkout
-#   * https://github.com/pypa/gh-action-pypi-publish
-#
-# RELATED:
-#   * https://github.com/actions/starter-workflows/blob/main/ci/python-publish.yml
-
-# -- STATE: PREPARED_ONLY, NOT_RELEASED_YET
-name: manual-release-to-pypi
-on:
-  workflow_dispatch:  # -- NOTE: Run it manually and provide the version.
-    inputs:
-      VERSION:
-        description: "Existing version to publish the release (to pypi; EXAMPLE: VERSION=1.2.7)"
-        required: true
-        type: string
-
-permissions:
-  contents: read
-
-jobs:
-  publish-package:
-    runs-on: ubuntu-latest
-    # MAYBE: if: github.event_name == "push" && startsWith(github.ref, "refs/tags/v")
-    environment:
-      name: pypi
-      url:  https://pypi.org/project/parse-type
-      # OR: https://pypi.org/p/<YOURPROJECT>
-    permissions:
-      id-token: write  # REQUIRED-FOR: Trusted publishing.
-    steps:
-      - uses: actions/checkout@v4
-        with:
-          ref: "v${{inputs.VERSION}}"
-        # env:
-        #   VERSION: "${{inputs.VERSION}}"
-      - uses: actions/setup-python@v5
-        with:
-          python-version: "3.10"
-      - name: "Install Python package dependencies (with: uv)"
-        run: |
-          python -m pip install -U uv
-          python -m uv pip install -U pip setuptools wheel build twine
-      - name: Build this package
-        run: python -m build
-      - name: Check this package (before upload)
-        run: twine check dist/*                                                                                                                   ─╯
-      - name: Upload this package to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
-        with:
-          print-hash: true
-          verbose: true
-        # -- MAYBE:
-        # with:
-        #   repository-url: https://test.pypi.org/legacy/
-        #   password: ${{ secrets.TEST_PYPI_API_TOKEN }}
diff --git a/.github/workflows/release-to-pypi.yml b/.github/workflows/release-to-pypi.yml
index 88e25e4..0d5f01b 100644
--- a/.github/workflows/release-to-pypi.yml
+++ b/.github/workflows/release-to-pypi.yml
@@ -45,7 +45,7 @@ jobs:
       - name: Build this package
         run: python -m build
       - name: Check this package (before upload)
-        run: twine check dist/*                                                                                                                   ─╯
+        run: twine check dist/*
       - name: Upload this package to PyPI
         uses: pypa/gh-action-pypi-publish@release/v1
         with:
diff --git a/.github/workflows/release-to-testpypi.yml b/.github/workflows/release-to-testpypi.yml
deleted file mode 100644
index 40924ac..0000000
--- a/.github/workflows/release-to-testpypi.yml
+++ /dev/null
@@ -1,58 +0,0 @@
-# -- WORKFLOW: Publish/release this package on PyPI (testpypi)
-# SEE:
-#   * https://docs.github.com/en/actions/automating-builds-and-tests/building-and-testing-python
-#   * https://docs.github.com/en/actions/use-cases-and-examples/building-and-testing/building-and-testing-python#publishing-to-pypi
-#
-#   * https://docs.github.com/en/actions/writing-workflows
-#   * https://docs.github.com/en/actions/writing-workflows/choosing-when-your-workflow-runs
-#   * https://docs.github.com/en/actions/writing-workflows/choosing-when-your-workflow-runs/events-that-trigger-workflows#release
-#
-# GITHUB ACTIONS:
-#   * https://github.com/actions/checkout
-#   * https://github.com/pypa/gh-action-pypi-publish
-#
-# RELATED:
-#   * https://github.com/actions/starter-workflows/blob/main/ci/python-publish.yml
-
-# -- STATE: PREPARED_ONLY, NOT_RELEASED_YET
-name: release-to-pypi
-on:
-   release:
-     types: [published]
-   # MAYBE: if: github.event_name == "push" && startsWith(github.ref, "refs/tags/v")
-
-permissions:
-  contents: read
-
-jobs:
-  publish-package:
-    runs-on: ubuntu-latest
-    # MAYBE: if: github.event_name == "push" && startsWith(github.ref, "refs/tags/v")
-    environment:
-      name: pypi
-      url:  https://test.pypi.org/project/parse-type
-      # OR: https://test.pypi.org/p/<YOURPROJECT>
-    permissions:
-      id-token: write  # REQUIRED-FOR: Trusted publishing.
-    steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
-        with:
-          python-version: "3.10"
-      - name: "Install Python package dependencies (with: uv)"
-        run: |
-          python -m pip install -U uv
-          python -m uv pip install -U pip setuptools wheel build twine
-      - name: Build this package
-        run: python -m build
-      - name: Check this package (before upload)
-        run: twine check dist/*                                                                                                                   ─╯
-      - name: Upload this package to PyPI
-        uses: pypa/gh-action-pypi-publish@release/v1
-        with:
-          print-hash: true
-          verbose: true
-        # -- MAYBE:
-        # with:
-        #   repository-url: https://test.pypi.org/legacy/
-        #   password: ${{ secrets.TEST_PYPI_API_TOKEN }}
diff --git a/parse_type/__init__.py b/parse_type/__init__.py
index 92c8b4d..8147313 100644
--- a/parse_type/__init__.py
+++ b/parse_type/__init__.py
@@ -11,4 +11,4 @@
 from parse_type.builder import TypeBuilder, build_type_dict
 
 __all__ = ["Cardinality", "TypeBuilder", "build_type_dict"]
-__version__ = "0.6.2"
+__version__ = "0.6.3"
diff --git a/pyproject.toml b/pyproject.toml
index ca74521..ba02098 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -61,6 +61,7 @@ Download = "https://pypi.org/project/parse_type/"
 
 [project.optional-dependencies]
 develop = [
+    "setuptools",
     "build >= 0.5.1",
     "twine >= 1.13.0",
     "coverage >= 4.4",
diff --git a/setup.py b/setup.py
index b216331..e44d7ee 100644
--- a/setup.py
+++ b/setup.py
@@ -53,7 +53,7 @@ def find_packages_by_root_package(where):
 # -----------------------------------------------------------------------------
 setup(
     name = "parse_type",
-    version = "0.6.2",
+    version = "0.6.3",
     author = "Jens Engel",
     author_email = "jenisys@noreply.github.com",
     url = "https://github.com/jenisys/parse_type",
@@ -79,11 +79,12 @@ def find_packages_by_root_package(where):
         "pytest-html >= 1.19.0",
     ],
     extras_require={
-        'docs': [
+        "docs": [
             "Sphinx >=1.6",
             "sphinx_bootstrap_theme >= 0.6.0"
         ],
-        'develop': [
+        "develop": [
+            "setuptools",
             "build >= 0.5.1",
             "twine >= 1.13.0",
             "coverage >= 4.4",