diff --git a/.github/ISSUE_TEMPLATE/bug.md b/.github/ISSUE_TEMPLATE/bug.md
index c2a211c..3407e7d 100644
--- a/.github/ISSUE_TEMPLATE/bug.md
+++ b/.github/ISSUE_TEMPLATE/bug.md
@@ -6,7 +6,7 @@ labels: 'bug'
 ### Environment information
 
 * Python Version: x.x.x
-* OS: osx/linux/win
+* OS: macOS/linux/win
 
 Python environment
 
diff --git a/.github/PULL_REQUEST_TEMPLATE.md b/.github/PULL_REQUEST_TEMPLATE.md
index 38bee12..996197d 100644
--- a/.github/PULL_REQUEST_TEMPLATE.md
+++ b/.github/PULL_REQUEST_TEMPLATE.md
@@ -1,14 +1,18 @@
 ### What I did
+<!-- Create a summary of the changes -->
 
-Related issue: #
+<!-- The `fixes:` field denotes an issue that will be marked resolved by merging this PR -->
+fixes: #
 
 ### How I did it
+<!-- Discuss the thought process behind the change -->
 
 ### How to verify it
+<!-- Discuss any methods that should be used to verify the change -->
 
 ### Checklist
+<!-- All PRs must complete the following checklist before being merged -->
 
-- [ ] Passes all linting checks (pre-commit and CI jobs)
-- [ ] New test cases have been added and are passing
+- [ ] All changes are completed
+- [ ] New test cases have been added
 - [ ] Documentation has been updated
-- [ ] PR title follows [Conventional Commit](https://www.conventionalcommits.org/en/v1.0.0/) standard (will be automatically included in the changelog)
diff --git a/.gitignore b/.gitignore
index 700eaf1..0b51dc5 100644
--- a/.gitignore
+++ b/.gitignore
@@ -26,6 +26,8 @@ share/python-wheels/
 .installed.cfg
 *.egg
 MANIFEST
+*.swp
+.DS_Store
 
 # PyInstaller
 #  Usually these files are written by a python script from a template
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index bf3232b..a267258 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -4,32 +4,27 @@ repos:
     hooks:
     -   id: check-yaml
 
--   repo: https://github.com/asottile/seed-isort-config
-    rev: v2.2.0
-    hooks:
-    -   id: seed-isort-config
-
 -   repo: https://github.com/pre-commit/mirrors-isort
     rev: v5.10.1
     hooks:
       - id: isort
 
 -   repo: https://github.com/psf/black
-    rev: 22.3.0
+    rev: 22.6.0
     hooks:
       - id: black
         name: black
 
 -   repo: https://gitlab.com/pycqa/flake8
-    rev: 3.9.2
+    rev: 4.0.1
     hooks:
     -   id: flake8
 
 -   repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.950
+    rev: v0.971
     hooks:
     -   id: mypy
-
+        additional_dependencies: [types-requests]
 
 default_language_version:
     python: python3
diff --git a/README.md b/README.md
index e105bb1..9dc879f 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 
 ## Dependencies
 
-* [python3](https://www.python.org/downloads/release/python-368/) version 3.6 or greater, python3-dev
+* [python3](https://www.python.org/downloads/release/python-368/) version 3.7.2 or greater, python3-dev
 
 ## Installation
 
@@ -42,7 +42,9 @@ python3 setup.py install
 
 ## Development
 
-This project is in early development and should be considered an alpha. Things might not work, breaking changes are likely. Comments, questions, criticisms and pull requests are welcomed.
+This project is in early development and should be considered an alpha.
+Things might not work, breaking changes are likely.
+Comments, questions, criticisms and pull requests are welcomed.
 
 ## License
 
diff --git a/pyproject.toml b/pyproject.toml
index 5c7d106..26e1f3d 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,4 +1,4 @@
- [build-system]
+[build-system]
 requires = ["setuptools>=51.1.1", "wheel", "setuptools_scm[toml]>=5.0"]
 
 [tool.mypy]
@@ -36,7 +36,5 @@ markers = "fuzzing: Run Hypothesis fuzz test suite"
 line_length = 100
 force_grid_wrap = 0
 include_trailing_comma = true
-known_third_party = ["click", "github", "hypothesis", "hypothesis_jsonschema", "pydantic", "pytest", "requests", "semantic_version", "setuptools"]
-known_first_party = ["tokenlists"]
 multi_line_output = 3
 use_parentheses = true
diff --git a/setup.py b/setup.py
index 8df85fe..c6cca95 100644
--- a/setup.py
+++ b/setup.py
@@ -5,18 +5,19 @@
 
 extras_require = {
     "test": [  # `test` GitHub Action jobs uses this
-        "pytest>=6.0,<7.0",  # Core testing package
+        "pytest>=6.0",  # Core testing package
         "pytest-xdist",  # multi-process runner
         "pytest-cov",  # Coverage analyzer plugin
-        "hypothesis>=6.2.0,<7.0",  # Strategy-based fuzzer
-        "PyGithub>=1.54,<2.0",  # Necessary to pull official schema from github
+        "hypothesis>=6.2.0,<7",  # Strategy-based fuzzer
+        "PyGithub>=1.54,<2",  # Necessary to pull official schema from github
         "hypothesis-jsonschema==0.19.0",  # Fuzzes based on a json schema
     ],
     "lint": [
-        "black>=22.3.0,<23.0",  # auto-formatter and linter
-        "mypy>=0.950,<1.0",  # Static type analyzer
-        "flake8>=4.0.1,<5.0",  # Style linter
-        "isort>=5.10.1,<6.0",  # Import sorting linter
+        "black>=22.6.0,<23",  # auto-formatter and linter
+        "mypy>=0.971,<1",  # Static type analyzer
+        "types-requests",  # Needed due to mypy typeshed
+        "flake8>=4.0.1,<5",  # Style linter
+        "isort>=5.10.1,<6",  # Import sorting linter
     ],
     "doc": [
         "Sphinx>=3.4.3,<4",  # Documentation generator
@@ -48,6 +49,7 @@
 with open("./README.md") as readme:
     long_description = readme.read()
 
+
 setup(
     name="tokenlists",
     use_scm_version=True,
@@ -62,10 +64,11 @@
     python_requires=">=3.7.2,<3.11",
     install_requires=[
         "importlib-metadata ; python_version<'3.8'",
-        "click>=8.0.1",
-        "pydantic>=1.9.0,<2.0.0",
-        "pyyaml>=6.0,<7.0",
-        "semantic-version>=2.9.0,<3",
+        "click>=8.1.3,<9",
+        "pydantic>=1.9.2,<2",
+        "pyyaml>=6.0,<7",
+        "semantic-version>=2.10.0,<3",
+        "requests>=2.28.1,<3",
     ],
     entry_points={"console_scripts": ["tokenlists=tokenlists._cli:cli"]},
     extras_require=extras_require,
diff --git a/tests/functional/test_schema_fuzzing.py b/tests/functional/test_schema_fuzzing.py
index 3b93118..67e30db 100644
--- a/tests/functional/test_schema_fuzzing.py
+++ b/tests/functional/test_schema_fuzzing.py
@@ -1,5 +1,5 @@
 import pytest
-import requests  # type: ignore
+import requests
 from hypothesis import HealthCheck, given, settings
 from hypothesis_jsonschema import from_schema
 from pydantic import ValidationError
diff --git a/tests/functional/test_uniswap_examples.py b/tests/functional/test_uniswap_examples.py
index bd69e85..5937d6d 100644
--- a/tests/functional/test_uniswap_examples.py
+++ b/tests/functional/test_uniswap_examples.py
@@ -1,15 +1,14 @@
 import os
 
 import github
-import pytest  # type: ignore
-import requests  # type: ignore
+import pytest
+import requests
 from pydantic import ValidationError
 
 from tokenlists import TokenList
 
 # NOTE: Must export GITHUB_ACCESS_TOKEN
 UNISWAP_REPO = github.Github(os.environ["GITHUB_ACCESS_TOKEN"]).get_repo("Uniswap/token-lists")
-
 UNISWAP_RAW_URL = "https://raw.githubusercontent.com/Uniswap/token-lists/master/test/schema/"
 
 
@@ -20,6 +19,13 @@
 def test_uniswap_tokenlists(token_list_name):
     token_list = requests.get(UNISWAP_RAW_URL + token_list_name).json()
 
+    if token_list_name in (
+        "example-crosschain.tokenlist.json",
+        "extensions-valid-object.tokenlist.json",
+    ):
+        # TODO: Unskip once can handle object extensions
+        pytest.skip("https://github.com/ApeWorX/py-tokenlists/issues/20")
+
     if "invalid" not in token_list_name:
         assert TokenList.parse_obj(token_list).dict() == token_list
 
diff --git a/tests/integration/conftest.py b/tests/integration/conftest.py
index 8a2939c..83eb44b 100644
--- a/tests/integration/conftest.py
+++ b/tests/integration/conftest.py
@@ -1,6 +1,6 @@
 from pathlib import Path
 
-import pytest  # type: ignore
+import pytest
 from click.testing import CliRunner
 
 from tokenlists import _cli, config
diff --git a/tokenlists/_cli.py b/tokenlists/_cli.py
index 21fbfb5..2ca4b3e 100644
--- a/tokenlists/_cli.py
+++ b/tokenlists/_cli.py
@@ -15,7 +15,7 @@ def choices(self):
         return list(TokenListManager().available_tokenlists())
 
 
-@click.group()
+@click.group(short_help="Work with token lists")
 @click.version_option(message="%(version)s", package_name="tokenlists")
 def cli():
     """
@@ -41,7 +41,6 @@ def _list():
 @click.argument("uri")
 def install(uri):
     manager = TokenListManager()
-
     manager.install_tokenlist(uri)
 
 
@@ -49,7 +48,6 @@ def install(uri):
 @click.argument("name", type=TokenlistChoice())
 def remove(name):
     manager = TokenListManager()
-
     manager.remove_tokenlist(name)
 
 
@@ -57,9 +55,7 @@ def remove(name):
 @click.argument("name", type=TokenlistChoice())
 def set_default(name):
     manager = TokenListManager()
-
     manager.set_default_tokenlist(name)
-
     click.echo(f"Default tokenlist is now: '{manager.default_tokenlist}'")
 
 
diff --git a/tokenlists/manager.py b/tokenlists/manager.py
index 4152ac4..af4ce6f 100644
--- a/tokenlists/manager.py
+++ b/tokenlists/manager.py
@@ -1,6 +1,6 @@
 from typing import Iterator, List, Optional
 
-import requests  # type: ignore
+import requests
 
 from tokenlists import config
 from tokenlists.typing import ChainId, TokenInfo, TokenList, TokenSymbol