diff --git a/org_rw/org_rw.py b/org_rw/org_rw.py
index acca21d..1d21c98 100644
--- a/org_rw/org_rw.py
+++ b/org_rw/org_rw.py
@@ -1,4 +1,5 @@
 from __future__ import annotations
+from typing import Optional
 from datetime import timedelta
 import collections
 import difflib
@@ -8,7 +9,7 @@ import re
 import sys
 from datetime import date, datetime, timedelta
 from enum import Enum
-from typing import Any, cast, Iterator, List, Literal, Optional, Tuple, TypedDict, TypeVar, Union
+from typing import cast, Iterator, List, Literal, Optional, Tuple, TypedDict, Union
 
 from .types import HeadlineDict
 
@@ -820,7 +821,7 @@ class Headline:
             raise NotImplementedError()
 
     def update_raw_contents(self, new_contents):
-        # Clear elements
+        # @TODO: Properly re-parse elements
         self.keywords = []
         self.contents = []
         self.list_items = []
@@ -832,31 +833,10 @@ class Headline:
         self.deadline = None
         self.closed = None
 
-        reader = OrgDocReader(environment=self.doc.environment)
-        reader.read(new_contents)
-
-        # No need to finalize as we can take the data from the reader instead of from a doc
-        if len(reader.headlines) > 0:
-            # Probably can be done by just adding the headlines to this one's children
-            raise NotImplementedError('new headlines on raw contents not supported yet. This probably should be simple, see comment on code.')
-
-        for kw in reader.keywords:
-            self.keywords.append(offset_linenum(self.start_line + 1, kw))
-
-        for content in reader.contents:
-            self.contents.append(offset_linenum(self.start_line + 1, content))
-
-        for list_item in reader.list_items:
-            self.list_items.append(offset_linenum(self.start_line + 1, list_item))
-
-        for struct_item in reader.structural:
-            self.structural.append(offset_linenum(self.start_line + 1, struct_item))
-
-        for prop in reader.properties:
-            self.properties.append(offset_linenum(self.start_line + 1, prop))
-
-        # Environment is not used, as it's known
-
+        for line in new_contents.split('\n'):
+            self.contents.append(
+                RawLine(linenum=0, line=line)
+            )
 
     def get_element_in_line(self, linenum):
         for line in self.contents:
@@ -1074,19 +1054,6 @@ TableRow = collections.namedtuple(
     ),
 )
 
-ItemWithLineNum = Union[Keyword, RawLine, Property, ListItem, tuple[int, Any]]
-def offset_linenum(offset: int, item: ItemWithLineNum) -> ItemWithLineNum:
-    if isinstance(item, tuple) and len(item) == 2 and isinstance(item[0], int):
-        return item
-
-    if isinstance(item, ListItem):
-        item.linenum += offset
-        return item
-
-    assert isinstance(item, (Keyword, RawLine, Property)), \
-        "Expected (Keyword|RawLine|Property), found {}".format(item)
-    return item._replace(linenum=item.linenum + offset)
-
 
 # @TODO How are [YYYY-MM-DD HH:mm--HH:mm] and ([... HH:mm]--[... HH:mm]) differentiated ?
 # @TODO Consider recurrence annotations
@@ -2291,7 +2258,6 @@ class OrgDoc:
         self.headlines: List[Headline] = list(
             map(lambda hl: parse_headline(hl, self, self), headlines)
         )
-        self.environment = environment
 
     @property
     def id(self):
diff --git a/tests/test_org.py b/tests/test_org.py
index e66e338..e49c6cf 100644
--- a/tests/test_org.py
+++ b/tests/test_org.py
@@ -865,46 +865,6 @@ class TestSerde(unittest.TestCase):
 
         self.assertEqual(dumps(doc), orig)
 
-    def test_update_reparse(self):
-        with open(os.path.join(DIR, "01-simple.org")) as f:
-            doc = load(f)
-
-        hl = doc.getTopHeadlines()[0]
-        ex = HL(
-            "First level",
-            props=[
-                ("ID", "01-simple-first-level-id"),
-                ("CREATED", DT(2020, 1, 1, 1, 1)),
-            ],
-            content="  First level content\n",
-            children=[
-                HL(
-                    "Second level",
-                    props=[("ID", "01-simple-second-level-id")],
-                    content="\n   Second level content\n",
-                    children=[
-                        HL(
-                            "Third level",
-                            props=[("ID", "01-simple-third-level-id")],
-                            content="\n    Third level content\n",
-                        )
-                    ],
-                )
-            ],
-        )
-
-        # Ground check
-        ex.assert_matches(self, hl)
-
-        # Update
-        lines = list(doc.dump_headline(hl, recursive=False))
-        assert lines[0].startswith('* ')  # Title, skip it
-        content = '\n'.join(lines[1:])
-        hl.update_raw_contents(content)
-
-        # Check after update
-        ex.assert_matches(self, hl, accept_trailing_whitespace_changes=True)
-
 
 def print_tree(tree, indentation=0, headline=None):
     for element in tree:
diff --git a/tests/utils/assertions.py b/tests/utils/assertions.py
index 732bc37..59dc658 100644
--- a/tests/utils/assertions.py
+++ b/tests/utils/assertions.py
@@ -58,7 +58,7 @@ class HL:
         self.content = content
         self.children = children
 
-    def assert_matches(self, test_case: unittest.TestCase, doc, accept_trailing_whitespace_changes=False):
+    def assert_matches(self, test_case: unittest.TestCase, doc):
         test_case.assertEqual(self.title, get_raw(doc.title))
 
         # Check properties
@@ -75,10 +75,7 @@ class HL:
                         timestamp_to_datetime(doc_props[i].value), prop[1]
                     )
 
-        if accept_trailing_whitespace_changes:
-            test_case.assertEqual(get_raw_contents(doc).rstrip(), self.get_raw().rstrip())
-        else:
-            test_case.assertEqual(get_raw_contents(doc), self.get_raw())
+        test_case.assertEqual(get_raw_contents(doc), self.get_raw())
 
         # Check children
         if self.children is None: