diff --git a/CHANGELOG.md b/CHANGELOG.md
index fcb19b8..7dcbee0 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,8 +1,13 @@
 ## Unreleased
 
+* Added:
+  * The `enable` command now supports the bypass/override environment variables
+    to use a different placeholder version than 0.0.0.
 * Fixed:
-  * The `enable` command would add `"version"` to `project.dynamic` even if it was already present.
+  * The `enable` command would add `"version"` to `project.dynamic` even if it were already present.
     ([Contributed by waketzheng](https://github.com/mtkennerly/poetry-dynamic-versioning/pull/214))
+  * The `enable` command would set `tool.poetry.version` to `"0.0.0"`
+    even if the field were already present with a different value.
 
 ## v1.6.0 (2025-01-10)
 
diff --git a/poetry_dynamic_versioning/cli.py b/poetry_dynamic_versioning/cli.py
index 4323f42..1445411 100644
--- a/poetry_dynamic_versioning/cli.py
+++ b/poetry_dynamic_versioning/cli.py
@@ -10,6 +10,7 @@
 from poetry_dynamic_versioning import (
     _get_and_apply_version,
     _get_config,
+    _get_override_version,
     _get_pyproject_path,
     _get_version,
     _state,
@@ -31,6 +32,7 @@ class Key:
     poetry = "poetry"
     dynamic = "dynamic"
     version = "version"
+    name = "name"
 
 
 class Command:
@@ -110,7 +112,10 @@ def enable() -> None:
     pyproject_path.write_bytes(tomlkit.dumps(config).encode("utf-8"))
 
 
-def _enable_in_doc(doc: tomlkit.TOMLDocument) -> tomlkit.TOMLDocument:
+def _enable_in_doc(doc: tomlkit.TOMLDocument, env: Optional[Mapping] = None) -> tomlkit.TOMLDocument:
+    name = doc.get(Key.project, {}).get(Key.name) or doc.get(Key.tool, {}).get(Key.poetry, {}).get(Key.name)
+    placeholder_version = _get_override_version(name, env) or "0.0.0"
+
     pdv_table = tomlkit.table().add(Key.enable, True)
     tool_table = tomlkit.table().add(Key.pdv, pdv_table)
 
@@ -141,9 +146,9 @@ def _enable_in_doc(doc: tomlkit.TOMLDocument) -> tomlkit.TOMLDocument:
             doc[Key.project][Key.dynamic].append(Key.version)
 
         if doc[Key.tool].get(Key.poetry) is None:
-            doc[Key.tool][Key.poetry] = tomlkit.table().add(Key.version, "0.0.0")
-        else:
-            doc[Key.tool][Key.poetry][Key.version] = "0.0.0"
+            doc[Key.tool][Key.poetry] = tomlkit.table().add(Key.version, placeholder_version)
+        elif doc[Key.tool][Key.poetry].get(Key.version) is None:
+            doc[Key.tool][Key.poetry][Key.version] = placeholder_version
 
     return doc
 
diff --git a/tests/test_unit.py b/tests/test_unit.py
index 9ea7792..c9b061e 100644
--- a/tests/test_unit.py
+++ b/tests/test_unit.py
@@ -250,6 +250,92 @@ def test__enable_in_doc__out_of_order_tables():
     )
 
 
+def test__enable_in_doc__project_with_version():
+    doc = tomlkit.parse(
+        textwrap.dedent(
+            """
+                [project]
+                version = "1.2.3"
+            """
+        )
+    )
+    updated = cli._enable_in_doc(doc)
+    assert tomlkit.dumps(updated) == textwrap.dedent(
+        """
+            [project]
+            dynamic = ["version"]
+
+            [tool]
+            [tool.poetry-dynamic-versioning]
+            enable = true
+
+            [tool.poetry]
+            version = "0.0.0"
+
+            [build-system]
+            requires = ["poetry-core>=1.0.0", "poetry-dynamic-versioning>=1.0.0,<2.0.0"]
+            build-backend = "poetry_dynamic_versioning.backend"
+        """
+    )
+
+
+def test__enable_in_doc__project_with_version_override():
+    doc = tomlkit.parse(
+        textwrap.dedent(
+            """
+                [project]
+            """
+        )
+    )
+    updated = cli._enable_in_doc(doc, env={plugin._BYPASS_ENV: "1.2.3"})
+    assert tomlkit.dumps(updated) == textwrap.dedent(
+        """
+            [project]
+            dynamic = ["version"]
+
+            [tool]
+            [tool.poetry-dynamic-versioning]
+            enable = true
+
+            [tool.poetry]
+            version = "1.2.3"
+
+            [build-system]
+            requires = ["poetry-core>=1.0.0", "poetry-dynamic-versioning>=1.0.0,<2.0.0"]
+            build-backend = "poetry_dynamic_versioning.backend"
+        """
+    )
+
+
+def test__enable_in_doc__project_with_dynamic():
+    doc = tomlkit.parse(
+        textwrap.dedent(
+            """
+                [project]
+                dynamic = ["version", "dependencies"]
+            """
+        )
+    )
+    updated = cli._enable_in_doc(doc)
+    assert tomlkit.dumps(updated) == textwrap.dedent(
+        """
+            [project]
+            dynamic = ["version", "dependencies"]
+
+            [tool]
+            [tool.poetry-dynamic-versioning]
+            enable = true
+
+            [tool.poetry]
+            version = "0.0.0"
+
+            [build-system]
+            requires = ["poetry-core>=1.0.0", "poetry-dynamic-versioning>=1.0.0,<2.0.0"]
+            build-backend = "poetry_dynamic_versioning.backend"
+        """
+    )
+
+
 def test__substitute_version_in_text__integers_only():
     content = textwrap.dedent(
         """