diff --git a/flake8_encodings/__init__.py b/flake8_encodings/__init__.py
index 8c20f54..f3a7817 100644
--- a/flake8_encodings/__init__.py
+++ b/flake8_encodings/__init__.py
@@ -186,7 +186,7 @@ def visit_Call(self, node: ast.Call) -> None:  # noqa: D102
 		self.generic_visit(node)
 
 
-class ClassVisitor(Visitor):
+class ClassVisitor(Visitor):  # pragma: no cover (py313+)
 	"""
 	AST visitor to identify incorrect use of encodings,
 	with support for :class:`pathlib.Path` and :class:`configparser.ConfigParser`.
@@ -361,7 +361,7 @@ def __init__(self, tree: ast.AST, filename: PathLike):
 
 	def run(self) -> Iterator[Tuple[int, int, str, Type["Plugin"]]]:  # noqa: D102
 
-		try:
+		try:  # pragma: no cover (py313+)
 			# 3rd party
 			import jedi
 
@@ -388,7 +388,7 @@ def run(self) -> Iterator[Tuple[int, int, str, Type["Plugin"]]]:  # noqa: D102
 				yield line, col, msg, type(self)
 
 
-def is_configparser_read(class_name: str, method_name: str) -> bool:
+def is_configparser_read(class_name: str, method_name: str) -> bool:  # pragma: no cover (py313+)
 	"""
 	Returns :py:obj:`True` if method is :meth:`configparser.ConfigParser.read` or
 	:meth:`configparser.RawConfigParser.read`.
@@ -408,7 +408,7 @@ def is_configparser_read(class_name: str, method_name: str) -> bool:
 	return True
 
 
-def is_pathlib_method(class_name: str, method_name: str) -> bool:
+def is_pathlib_method(class_name: str, method_name: str) -> bool:  # pragma: no cover (py313+)
 	"""
 	Returns :py:obj:`True` if method is :meth:`pathlib.Path.open`,
 	:meth:`read_text() <pathlib.Path.read_text>` or :meth:`write_text() <pathlib.Path.write_text>`.
@@ -428,7 +428,7 @@ def is_pathlib_method(class_name: str, method_name: str) -> bool:
 	return True
 
 
-def get_inferred_types(jedi_script: "Script", node: ast.Call) -> List[str]:
+def get_inferred_types(jedi_script: "Script", node: ast.Call) -> List[str]:  # pragma: no cover (py313+)
 	"""
 	Returns a list of types inferred by ``jedi`` for the given call node.
 
diff --git a/repo_helper.yml b/repo_helper.yml
index ca826fb..3ca808f 100644
--- a/repo_helper.yml
+++ b/repo_helper.yml
@@ -68,6 +68,7 @@ extras_require:
 
 tox_unmanaged:
  - testenv
+ - testenv:py313-dev
 
 exclude_files:
  - contributing
diff --git a/tox.ini b/tox.ini
index 8f6b051..4e09abb 100644
--- a/tox.ini
+++ b/tox.ini
@@ -3,7 +3,6 @@
 #     * tox
 #     * envlists
 #     * testenv:.package
-#     * testenv:py313-dev
 #     * testenv:py312-dev
 #     * testenv:py312
 #     * testenv:docs
@@ -65,11 +64,6 @@ setenv =
     PYTHONDEVMODE=1
     PIP_DISABLE_PIP_VERSION_CHECK=1
 
-[testenv:py313-dev]
-setenv =
-    PYTHONDEVMODE=1
-    PIP_DISABLE_PIP_VERSION_CHECK=1
-
 [testenv:py312]
 setenv =
     PYTHONDEVMODE=1
@@ -231,6 +225,15 @@ filterwarnings =
     error
     ignore:can't resolve package from __spec__ or __package__, falling back on __name__ and __path__:ImportWarning
 
+[testenv:py313-dev]
+setenv =
+    PYTHONDEVMODE=1
+    PIP_DISABLE_PIP_VERSION_CHECK=1
+commands =
+    python --version
+    python -m pip uninstall jedi -y
+    python -m pytest --cov=flake8_encodings -r aR tests/ --cov-append {posargs}
+
 [testenv]
 setenv =
     PYTHONDEVMODE=1