diff --git a/server/buildoutls/bench/slapos.py b/server/buildoutls/bench/slapos.py
index ad62e28..90b2b0d 100644
--- a/server/buildoutls/bench/slapos.py
+++ b/server/buildoutls/bench/slapos.py
@@ -113,11 +113,11 @@ async def test_open_and_diagnostic(
     cache: Any,
 ) -> None:
   doc_uri = (slapos_working_copy / profile_relative_path).as_uri()
-  workspace = Workspace(slapos_working_copy.as_uri())  # type: ignore
+  workspace = Workspace(slapos_working_copy.as_uri())
   ls = LanguageServer(name='zc.buildout.languageserver',
                       version='dev',
                       loop=asyncio.new_event_loop())
-  ls.lsp.workspace = workspace
+  ls.lsp._workspace = workspace
 
   async def open_and_get_diagnostics() -> List[Diagnostic]:
     diags: List[Diagnostic] = []
diff --git a/server/buildoutls/buildout.py b/server/buildoutls/buildout.py
index 7c0a158..29bce43 100644
--- a/server/buildoutls/buildout.py
+++ b/server/buildoutls/buildout.py
@@ -563,7 +563,7 @@ async def getTemplate(
               uri_path.relative_to(
                   pathlib.Path(self.uri[len('file://'):]).parent)))
 
-    document = ls.workspace.get_document(uri)
+    document = ls.workspace.get_text_document(uri)
     if not os.path.exists(document.path):
       return None
 
@@ -969,7 +969,7 @@ async def parse(
       logger.warning('Error parsing from uri %s', uri, exc_info=True)
       fp = io.StringIO('')
   else:
-    document = ls.workspace.get_document(uri)
+    document = ls.workspace.get_text_document(uri)
     try:
       fp = io.StringIO(document.source)
     except IOError:
@@ -1313,7 +1313,7 @@ async def open(
 
   For buildout, it is a wrapper over _open which uses language server's workspace
   """
-  document = ls.workspace.get_document(uri)
+  document = ls.workspace.get_text_document(uri)
   logger.debug("open %s", uri)
   if not force_open_as_buildout_profile:
     # First, try to read as a template, because buildout profiles can be templates.
diff --git a/server/buildoutls/server.py b/server/buildoutls/server.py
index e36165c..9df1564 100644
--- a/server/buildoutls/server.py
+++ b/server/buildoutls/server.py
@@ -221,7 +221,7 @@ async def lsp_completion(
     params: CompletionParams,
 ) -> Optional[List[CompletionItem]]:
   items: List[CompletionItem] = []
-  doc = ls.workspace.get_document(params.text_document.uri)
+  doc = ls.workspace.get_text_document(params.text_document.uri)
 
   def getSectionReferenceCompletionTextEdit(
       doc: Document,
diff --git a/server/buildoutls/tests/conftest.py b/server/buildoutls/tests/conftest.py
index d8d024e..0490ef5 100644
--- a/server/buildoutls/tests/conftest.py
+++ b/server/buildoutls/tests/conftest.py
@@ -58,7 +58,7 @@ def __init__(self):
 
   server = FakeServer()
 
-  def get_document(uri) -> Document:
+  def get_text_document(uri) -> Document:
     parsed_uri = urllib.parse.urlparse(uri)
     assert parsed_uri.scheme == "file"
     assert parsed_uri.path[0] == '/'
@@ -67,7 +67,7 @@ def get_document(uri) -> Document:
       document.path = os.path.join(root_path, parsed_uri.path[1:])
     return document
 
-  server.workspace.get_document = mock.Mock(side_effect=get_document)
+  server.workspace.get_text_document = mock.Mock(side_effect=get_text_document)
 
   def os_path_exists(path: str) -> bool:
     if path.startswith('/'):
@@ -89,7 +89,7 @@ def clearCaches() -> None:
   server.publish_diagnostics.reset_mock()
   server.show_message.reset_mock()
   server.show_message_log.reset_mock()
-  server.workspace.get_document.reset_mock()
+  server.workspace.get_text_document.reset_mock()
 
   clearCaches()
 
diff --git a/server/buildoutls/tests/test_buildout_parser.py b/server/buildoutls/tests/test_buildout_parser.py
index 61cf022..5135c2c 100644
--- a/server/buildoutls/tests/test_buildout_parser.py
+++ b/server/buildoutls/tests/test_buildout_parser.py
@@ -678,7 +678,7 @@ async def test_open_extends_cache(server: LanguageServer):
   )
   # check the cache is effective, the same file is included twice,
   # but we load it only once.
-  assert server.workspace.get_document.call_count == 4  # type: ignore
+  assert server.workspace.get_text_document.call_count == 4  # type: ignore
 
 
 async def test_open_extends_cache_clear(server: LanguageServer):
@@ -693,10 +693,10 @@ async def test_open_extends_cache_clear(server: LanguageServer):
   assert 'option' in symbol.referenced_section
 
   clearCache('file:///extended/extended.cfg')
-  original_get_document = server.workspace.get_document
+  original_get_text_document = server.workspace.get_text_document
 
   def getModifiedDocument(uri: str):
-    doc = original_get_document(uri)
+    doc = original_get_text_document(uri)
     if uri == 'file:///extended/extended.cfg':
       doc._source = textwrap.dedent('''\
           [extended_option]
@@ -706,7 +706,7 @@ def getModifiedDocument(uri: str):
 
   with mock.patch.object(
       server.workspace,
-      'get_document',
+      'get_text_document',
       side_effect=getModifiedDocument,
   ):
     parsed = await open(
@@ -724,9 +724,9 @@ def getModifiedDocument(uri: str):
 async def test_open_resolved_cache_clear(server: LanguageServer):
   with mock.patch.object(
       server.workspace,
-      'get_document',
-      wraps=server.workspace.get_document,
-  ) as get_document_initial:
+      'get_text_document',
+      wraps=server.workspace.get_text_document,
+  ) as get_text_document_initial:
     parsed = await open(
         ls=server,
         uri='file:///extended/two_levels.cfg',
@@ -737,15 +737,15 @@ async def test_open_resolved_cache_clear(server: LanguageServer):
     assert symbol.referenced_section is not None
     assert 'option' in symbol.referenced_section
   assert mock.call(
-      'file:///extended/extended.cfg') in get_document_initial.mock_calls
+      'file:///extended/extended.cfg') in get_text_document_initial.mock_calls
 
   clearCache('file:///extended/two_levels.cfg')
 
   with mock.patch.object(
       server.workspace,
-      'get_document',
-      wraps=server.workspace.get_document,
-  ) as get_document_after_clear_cache:
+      'get_text_document',
+      wraps=server.workspace.get_text_document,
+  ) as get_text_document_after_clear_cache:
     parsed = await open(
         ls=server,
         uri='file:///extended/two_levels.cfg',
@@ -756,9 +756,9 @@ async def test_open_resolved_cache_clear(server: LanguageServer):
     assert symbol.referenced_section is not None
     assert 'option' in symbol.referenced_section
   assert mock.call('file:///extended/two_levels.cfg'
-                   ) in get_document_after_clear_cache.mock_calls
+                   ) in get_text_document_after_clear_cache.mock_calls
   assert mock.call('file:///extended/extended.cfg'
-                   ) not in get_document_after_clear_cache.mock_calls
+                   ) not in get_text_document_after_clear_cache.mock_calls
 
 
 async def test_open_macro(server: LanguageServer):
diff --git a/server/requirements.txt b/server/requirements.txt
index 047e8eb..58d3b76 100644
--- a/server/requirements.txt
+++ b/server/requirements.txt
@@ -10,14 +10,14 @@ async-timeout==4.0.3
 attrs==23.1.0
 cachetools==5.3.1
 cattrs==23.1.2
-charset-normalizer==3.2.0
+charset-normalizer==3.3.0
 exceptiongroup==1.1.3
 frozenlist==1.4.0
 idna==3.4
 lsprotocol==2023.0.0b1
 multidict==6.0.4
-packaging==23.1
-pygls==1.0.2
+packaging==23.2
+pygls==1.1.0
 typeguard==3.0.2
 typing-extensions==4.8.0
 wheel==0.41.2
diff --git a/server/setup.py b/server/setup.py
index e2f0da3..0d92463 100644
--- a/server/setup.py
+++ b/server/setup.py
@@ -33,7 +33,7 @@
         'aiohttp',
         'cachetools',
         'packaging',
-        'pygls >= 1.0',
+        'pygls >= 1.1.0',
         'typing-extensions',
         'zc.buildout',
     ],
diff --git a/server/test-requirements.txt b/server/test-requirements.txt
index 1fd5990..30ea267 100644
--- a/server/test-requirements.txt
+++ b/server/test-requirements.txt
@@ -7,13 +7,13 @@
 aiohttp==3.8.5
 aioresponses==0.7.4
 aiosignal==1.3.1
-astroid==2.15.6
+astroid==3.0.0
 async-timeout==4.0.3
 attrs==23.1.0
 cachetools==5.3.1
 cattrs==23.1.2
-charset-normalizer==3.2.0
-coverage[toml]==7.3.1
+charset-normalizer==3.3.0
+coverage[toml]==7.3.2
 dill==0.3.7
 exceptiongroup==1.1.3
 frozenlist==1.4.0
@@ -21,18 +21,17 @@ idna==3.4
 importlib-metadata==6.8.0
 iniconfig==2.0.0
 isort==5.12.0
-lazy-object-proxy==1.9.0
 lsprotocol==2023.0.0b1
 mccabe==0.7.0
 multidict==6.0.4
 mypy==1.5.1
 mypy-extensions==1.0.0
-packaging==23.1
-platformdirs==3.10.0
+packaging==23.2
+platformdirs==3.11.0
 pluggy==1.3.0
 py-cpuinfo==9.0.0
-pygls==1.0.2
-pylint==2.17.5
+pygls==1.1.0
+pylint==3.0.0
 pytest==7.4.2
 pytest-asyncio==0.21.1
 pytest-benchmark==4.0.0
@@ -45,8 +44,7 @@ types-setuptools==68.2.0.0
 types-toml==0.10.8.7
 typing-extensions==4.8.0
 wheel==0.41.2
-wrapt==1.15.0
-yapf==0.40.1
+yapf==0.40.2
 yarl==1.9.2
 # zc-buildout==3.0.1
 zipp==3.17.0