diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 9260d6bd..00000000
--- a/.travis.yml
+++ /dev/null
@@ -1,67 +0,0 @@
-language: python
-
-dist: focal
-
-addons:
-  apt:
-    packages:
-      - libdbus-1-dev
-
-matrix:
-  include:
-    - python: "3.6"
-      env: TOXENV=py36
-    - python: "3.7"
-      env: TOXENV=py37
-    - python: "3.8"
-      env: TOXENV=py38
-    - python: "3.9"
-      env: TOXENV=py39
-    - python: "3.10"
-      env: TOXENV=py310
-    - python: "3.11-dev"
-      env: TOXENV=py311
-    # PyPy Environments
-    - python: "pypy3.6-7.3.3"
-      env: TOXENV=pypy36
-    - python: "pypy3.9-7.3.9"
-      env: TOXENV=pypy39
-    # An extra environment where additional packages are not installed
-    - python: "3.9"
-      env:
-        - TOXENV=bare
-
-install:
-  - pip install babel
-
-  # Use up-to-date versions of tox, pip, virtualenv, and wheel.
-  - pip install --upgrade tox pip virtualenv wheel
-
-  # cryptography 3.3 is the last one not needing a Rust toolchain. Let's use it for PyPy.
-  - if [[ $TOXENV == 'pypy'* ]]; then pip install "cryptography<3.4"; fi
-
-  # Install project dependencies.
-  - pip install codecov
-  - pip install -r dev-requirements.txt
-  - pip install -r requirements.txt
-
-  # bare installs do not include extra package dependencies
-  - if [[ $TOXENV != 'bare' ]]; then pip install -r all-plugin-requirements.txt; fi
-  # pypy and bare installs do not include dbus-python
-  - if [[ $TOXENV != 'bare' ]] && [[ $TRAVIS_PYTHON_VERSION != 'pypy'* ]]; then travis_retry pip install dbus-python; fi
-
-  # Fix/workaround: Python 3.7 importlib-metadata becomes incompatible with flake8,
-  #                 unless we use a version that still supports EntryPoints.get().
-  #                 `tox.ini` has been updated to not call flake8 on Python 3.7.
-  - if [[ $TOXENV == 'py37' || $TOXENV == 'pypy37' ]]; then pip uninstall --yes flake8; fi
-
-# run tests
-script:
-  - tox
-
-after_success:
-  - tox -e coverage-report
-  - codecov
-
-notifications:
-  email: false
diff --git a/README.md b/README.md
index bbc62918..53460061 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ System Administrators and DevOps who wish to send a notification now no longer n
 [![Follow](https://img.shields.io/twitter/follow/l2gnux)](https://twitter.com/l2gnux/)<br/>
 [![Discord](https://img.shields.io/discord/558793703356104724.svg?colorB=7289DA&label=Discord&logo=Discord&logoColor=7289DA&style=flat-square)](https://discord.gg/MMPeN2D)
 [![Python](https://img.shields.io/pypi/pyversions/apprise.svg?style=flat-square)](https://pypi.org/project/apprise/)
-[![Build Status](https://travis-ci.com/caronc/apprise.svg?branch=master)](https://app.travis-ci.com/github/caronc/apprise)
+[![Build Status](https://github.com/caronc/apprise/actions/workflows/tests.yml/badge.svg)](https://github.com/caronc/apprise/actions/workflows/tests.yml)
 [![CodeCov Status](https://codecov.io/github/caronc/apprise/branch/master/graph/badge.svg)](https://codecov.io/github/caronc/apprise)
 [![PyPi](https://img.shields.io/pypi/dm/apprise.svg?style=flat-square)](https://pypi.org/project/apprise/)
 
diff --git a/apprise/plugins/NotifyBulkSMS.py b/apprise/plugins/NotifyBulkSMS.py
index 8fa54642..eaf2a18b 100644
--- a/apprise/plugins/NotifyBulkSMS.py
+++ b/apprise/plugins/NotifyBulkSMS.py
@@ -30,7 +30,6 @@
 # API is documented here:
 #   - https://www.bulksms.com/developer/json/v1/#tag/Message
 import re
-import six
 import requests
 import json
 from itertools import chain
@@ -192,7 +191,7 @@ class NotifyBulkSMS(NotifyBase):
 
         # Setup our route
         self.route = self.template_args['route']['default'] \
-            if not isinstance(route, six.string_types) else route.upper()
+            if not isinstance(route, str) else route.upper()
         if self.route not in BULKSMS_ROUTING_GROUPS:
             msg = 'The route specified ({}) is invalid.'.format(route)
             self.logger.warning(msg)
diff --git a/dev-requirements.txt b/dev-requirements.txt
index 03e01a3e..e304524c 100644
--- a/dev-requirements.txt
+++ b/dev-requirements.txt
@@ -4,5 +4,4 @@ pytest
 pytest-cov
 pytest-mock
 pytest-xdist
-tox
 babel
diff --git a/test/test_plugin_glib.py b/test/test_plugin_glib.py
index 959d1bf9..71153170 100644
--- a/test/test_plugin_glib.py
+++ b/test/test_plugin_glib.py
@@ -68,7 +68,7 @@ def setup_glib_environment():
         importlib.reload(sys.modules['apprise.plugins.NotifyDBus'])
 
     # We need to fake our dbus environment for testing purposes since
-    # the gi library isn't available in Travis CI
+    # the gi library isn't available on CI
     gi = types.ModuleType(gi_name)
     gi.repository = types.ModuleType(gi_name + '.repository')
 
diff --git a/test/test_plugin_gnome.py b/test/test_plugin_gnome.py
index 11159141..9eab4913 100644
--- a/test/test_plugin_gnome.py
+++ b/test/test_plugin_gnome.py
@@ -58,7 +58,7 @@ def setup_glib_environment():
         reload_plugin('NotifyGnome')
 
     # We need to fake our gnome environment for testing purposes since
-    # the gi library isn't available in Travis CI
+    # the gi library isn't available on CI
     gi = types.ModuleType(gi_name)
     gi.repository = types.ModuleType(gi_name + '.repository')
     gi.module = types.ModuleType(gi_name + '.module')
diff --git a/tox.ini b/tox.ini
deleted file mode 100644
index f3715a57..00000000
--- a/tox.ini
+++ /dev/null
@@ -1,144 +0,0 @@
-[tox]
-envlist = py36,py37,py38,py39,py310,py311.pypy36,pypy39,bare,coverage-report
-
-[testenv]
-# Prevent random setuptools/pip breakages like
-# https://github.com/pypa/setuptools/issues/1042 from breaking our builds.
-setenv =
-    VIRTUALENV_NO_DOWNLOAD=1
-deps=
-    -r{toxinidir}/requirements.txt
-    -r{toxinidir}/dev-requirements.txt
-commands =
-    python setup.py compile_catalog
-    coverage run -m pytest {posargs}
-    flake8 . --count --show-source --statistics
-
-[testenv:py36]
-deps=
-   dbus-python
-   -r{toxinidir}/requirements.txt
-   -r{toxinidir}/dev-requirements.txt
-   -r{toxinidir}/all-plugin-requirements.txt
-commands =
-    python setup.py compile_catalog
-    coverage run -m pytest {posargs}
-    flake8 . --count --show-source --statistics
-
-[testenv:py37]
-deps=
-   dbus-python
-   -r{toxinidir}/requirements.txt
-   -r{toxinidir}/dev-requirements.txt
-   -r{toxinidir}/all-plugin-requirements.txt
-commands =
-    python setup.py compile_catalog
-    coverage run -m pytest {posargs}
-
-[testenv:py38]
-deps=
-   dbus-python
-   -r{toxinidir}/requirements.txt
-   -r{toxinidir}/dev-requirements.txt
-   -r{toxinidir}/all-plugin-requirements.txt
-commands =
-    python setup.py compile_catalog
-    coverage run -m pytest {posargs}
-    flake8 . --count --show-source --statistics
-
-[testenv:py39]
-deps=
-   dbus-python
-   -r{toxinidir}/requirements.txt
-   -r{toxinidir}/dev-requirements.txt
-   -r{toxinidir}/all-plugin-requirements.txt
-commands =
-    python setup.py compile_catalog
-    coverage run -m pytest {posargs}
-    flake8 . --count --show-source --statistics
-
-[testenv:py310]
-deps=
-   dbus-python
-   -r{toxinidir}/requirements.txt
-   -r{toxinidir}/dev-requirements.txt
-   -r{toxinidir}/all-plugin-requirements.txt
-commands =
-    python setup.py compile_catalog
-    coverage run -m pytest {posargs}
-    flake8 . --count --show-source --statistics
-
-[testenv:py311]
-deps=
-   dbus-python
-   -r{toxinidir}/requirements.txt
-   -r{toxinidir}/dev-requirements.txt
-   -r{toxinidir}/all-plugin-requirements.txt
-commands =
-    python setup.py compile_catalog
-    coverage run --parallel -m pytest {posargs}
-    flake8 . --count --show-source --statistics
-
-[testenv:bare]
-deps=
-   -r{toxinidir}/requirements.txt
-   -r{toxinidir}/dev-requirements.txt
-commands =
-    python setup.py compile_catalog
-    coverage run -m pytest {posargs}
-    flake8 . --count --show-source --statistics
-
-[testenv:pypy36]
-deps=
-   # cryptography 3.3 is the last one not needing a Rust toolchain.
-   cryptography<3.4
-   -r{toxinidir}/requirements.txt
-   -r{toxinidir}/dev-requirements.txt
-   -r{toxinidir}/all-plugin-requirements.txt
-commands =
-    python setup.py compile_catalog
-    coverage run -m pytest {posargs}
-    flake8 . --count --show-source --statistics
-
-[testenv:pypy37]
-deps=
-   # cryptography 3.3 is the last one not needing a Rust toolchain.
-   cryptography<3.4
-   -r{toxinidir}/requirements.txt
-   -r{toxinidir}/dev-requirements.txt
-   -r{toxinidir}/all-plugin-requirements.txt
-commands =
-    python setup.py compile_catalog
-    coverage run -m pytest {posargs}
-
-[testenv:pypy38]
-deps=
-   # cryptography 3.3 is the last one not needing a Rust toolchain.
-   cryptography<3.4
-   -r{toxinidir}/requirements.txt
-   -r{toxinidir}/dev-requirements.txt
-   -r{toxinidir}/all-plugin-requirements.txt
-commands =
-    python setup.py compile_catalog
-    coverage run -m pytest {posargs}
-    flake8 . --count --show-source --statistics
-
-[testenv:pypy39]
-deps=
-   # cryptography 3.3 is the last one not needing a Rust toolchain.
-   cryptography<3.4
-   -r{toxinidir}/requirements.txt
-   -r{toxinidir}/dev-requirements.txt
-   -r{toxinidir}/all-plugin-requirements.txt
-commands =
-    python setup.py compile_catalog
-    coverage run -m pytest {posargs}
-    flake8 . --count --show-source --statistics
-
-[testenv:coverage-report]
-deps = coverage
-skip_install = true
-commands=
-   coverage combine
-   coverage xml
-   coverage report