diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-package.yml
index eff8a1f..0fb3d29 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-package.yml
@@ -15,7 +15,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
 
     steps:
     - uses: actions/checkout@v3
diff --git a/anakinls/server.py b/anakinls/server.py
index b14ad32..0f6419b 100644
--- a/anakinls/server.py
+++ b/anakinls/server.py
@@ -31,7 +31,7 @@
 from jedi.api.refactoring import Refactoring  # type: ignore
 from lsprotocol import types
 from pycodestyle import BaseReport as CodestyleBaseReport  # type: ignore
-from pycodestyle import Checker as CodestyleChecker
+from pycodestyle import Checker as CodestyleBaseChecker
 from pycodestyle import StyleGuide as CodestyleStyleGuide
 from pyflakes.api import check as pyflakes_check  # type: ignore
 from pygls.protocol import LanguageServerProtocol, lsp_method
@@ -223,6 +223,12 @@ def flake(self, message):
         )
 
 
+class CodestyleChecker(CodestyleBaseChecker):
+    def report_invalid_syntax(self):
+        # Syntax errors are provided by Jedi. Just ignore pycodestyle.
+        pass
+
+
 class CodestyleReport(CodestyleBaseReport):
     def __init__(self, options, result):
         super().__init__(options)
diff --git a/tests/test_server.py b/tests/test_server.py
index 6cf3b31..38c3203 100644
--- a/tests/test_server.py
+++ b/tests/test_server.py
@@ -32,6 +32,7 @@ def __init__(self):
 
 @pytest.fixture()
 def server():
+    aserver.scripts.clear()
     return Server()
 
 
@@ -139,9 +140,9 @@ def test_diff_to_edits():
     assert str(edits[3].range) == '24:0-24:0'
 
 
-def test_no_pyflakes_syntax_error_diagnostic(server):
+@pytest.mark.parametrize('content', ('pass\n\nif\n', 'def foo(def\n'))
+def test_only_jedi_syntax_error_diagnostic(server, content):
     uri = 'file://test_diagnostic.py'
-    content = 'pass\n\nif\n'
     doc = Document(uri, content)
     server.workspace.get_text_document = Mock(return_value=doc)
     server.publish_diagnostics = Mock()