diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 4e01542..a40b3e9 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -27,6 +27,8 @@ to be notified when new versions of ``bidict`` are released.
 0.21.3 (not yet released)
 -------------------------
 
+- Drop setuptools_scm as a setup_requires dependency.
+
 - Remove ``bidict.__version_info__`` attribute.
 
 
diff --git a/bidict/metadata.py b/bidict/metadata.py
index 2668834..0b26013 100644
--- a/bidict/metadata.py
+++ b/bidict/metadata.py
@@ -8,25 +8,7 @@
 """Define bidict package metadata."""
 
 
-__version__ = '0.0.0.VERSION_NOT_FOUND'
-
-# _version.py is generated by setuptools_scm (via its `write_to` param, see setup.py)
-try:
-    from ._version import version
-except Exception:  # pragma: no cover
-    try:
-        import pkg_resources
-    except Exception:  # pragma: no cover
-        pass
-    else:
-        try:
-            __version__ = pkg_resources.get_distribution('bidict').version
-        except Exception:  # pragma: no cover
-            pass
-else:  # pragma: no cover
-    __version__ = version
-
-
+__version__ = '0.21.3.dev'
 __author__ = 'Joshua Bronson'
 __maintainer__ = 'Joshua Bronson'
 __copyright__ = 'Copyright 2009-2021 Joshua Bronson'
diff --git a/pyproject.toml b/pyproject.toml
index 4dd7e66..44836bb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -2,6 +2,5 @@
 requires = [
     "setuptools",
     "wheel",
-    "setuptools_scm",
 ]
 build-backend = "setuptools.build_meta"
diff --git a/setup.cfg b/setup.cfg
index ce703ac..c10ce38 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -5,6 +5,10 @@
 # file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
 
+# https://packaging.python.org/guides/single-sourcing-package-version/#:~:text=%5Bmetadata%5D%0Aversion%20%3D%20attr%3A%20package.__version__
+[metadata]
+version = attr: bidict.__version__
+
 # https://wheel.readthedocs.io/en/stable/user_guide.html#building-wheels
 [bdist_wheel]
 # No longer Python 2-compatible -> disable universal wheels:
diff --git a/setup.py b/setup.py
index e068b8c..a875b44 100644
--- a/setup.py
+++ b/setup.py
@@ -48,12 +48,6 @@ with open(join(CWD, 'README.rst'), encoding='utf-8') as f:
 
 setup(
     name='bidict',
-    use_scm_version={
-        'version_scheme': 'guess-next-dev',
-        'local_scheme': 'dirty-tag',
-        'write_to': 'bidict/_version.py',
-        'parentdir_prefix_version': 'bidict-',
-    },
     author=METADATA.__author__,  # type: ignore
     author_email=METADATA.__email__,  # type: ignore
     description=METADATA.__description__,  # type: ignore