diff --git a/git/index/base.py b/git/index/base.py
@@ -1133,6 +1133,7 @@ def commit(
        author_date: Union[datetime.datetime, str, None] = None,
        commit_date: Union[datetime.datetime, str, None] = None,
        skip_hooks: bool = False,
    ) -> Commit:
        """Commit the current default index file, creating a
        :class:`~git.objects.commit.Commit` object.
@@ -1169,6 +1170,7 @@ def commit(
            committer=committer,
            author_date=author_date,
            commit_date=commit_date,
        )
        if not skip_hooks:
            run_commit_hook("post-commit", self)

diff --git a/git/objects/commit.py b/git/objects/commit.py
@@ -570,6 +570,7 @@ def create_from_tree(
        committer: Union[None, Actor] = None,
        author_date: Union[None, str, datetime.datetime] = None,
        commit_date: Union[None, str, datetime.datetime] = None,
    ) -> "Commit":
        """Commit the given tree, creating a :class:`Commit` object.

@@ -609,6 +610,14 @@ def create_from_tree(
        :param commit_date:
            The timestamp for the committer field.

        :return:
            :class:`Commit` object representing the new commit.

@@ -678,6 +687,29 @@ def create_from_tree(
            tree = repo.tree(tree)
        # END tree conversion

        # CREATE NEW COMMIT
        new_commit = cls(
            repo,

diff --git a/test/test_commit.py b/test/test_commit.py
@@ -566,3 +566,77 @@ def test_commit_co_authors(self):
            Actor("test_user_2", "another_user-email@github.com"),
            Actor("test_user_3", "test_user_3@github.com"),
        ]
Original file line number	Diff line number	Diff line change
		@@ -566,3 +566,77 @@ def test_commit_co_authors(self):
		Actor("test_user_2", "another_user-email@github.com"),
		Actor("test_user_3", "test_user_3@github.com"),
		]