Installing local package with "pip install -e ." does not update instalation

I am working on a small package locally, and want to install it in editable mode so that when I make changes to it I don't have to reinstall after every change. When I install using pip install . everything works as expected, however when I change it to pip install -e ., the package does not update the modules contained in utils.py on install, nor when modules are changed. Here is my init.py:

from .utils import *

and my setup.py:

from setuptools import setup, find_packages

with open("README.md", "r", encoding="utf-8") as fh:
    long_description = fh.read()

setup(
    name="mypackage",
    version="0.1.4",
    packages=find_packages(include=["mypackage"]),
    include_package_data=True,
    author="myname",
    description="placeholder",
    long_description=long_description,
    url="github.here",
    license="GNU GPLv3",
    install_requires=[
        "mypackage",
        "pandas",
        "matplotlib",
        "numpy",
        "ipykernel",
    ],
)

I have already tried to change packages=find_packages(), and install_requires=["pandas", "matplotlib", "numpy", "ipykernel",], which did not fix the issue.

edit: Here is the project file format-

mypackage
|---mypackage
|---|---__pycache__
|---|---__init__.py
|---|---utils.py
|---mypackage.egg-info
|---notebooks
|---|---test.ipynb
|---README.md
|---.gitattributes
|---setup.py