diff --git a/.github/workflows/python-package.yml b/.github/workflows/python-lint.yml
similarity index 68%
rename from .github/workflows/python-package.yml
rename to .github/workflows/python-lint.yml
index 668a43f..dd4929e 100644
--- a/.github/workflows/python-package.yml
+++ b/.github/workflows/python-lint.yml
@@ -1,7 +1,7 @@
 # This workflow will install Python dependencies, run tests and lint with a variety of Python versions
 # For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions
 
-name: Python package
+name: Python Lints and Tests 
 
 on: [push, pull_request]
 
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.6, 3.7, 3.8]
+        python-version: [3.7, 3.8, 3.9]
 
     steps:
     - uses: actions/checkout@v2
@@ -24,12 +24,13 @@ jobs:
         python -m pip install --upgrade pip
         pip install flake8 pytest
         if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
-    - name: Lint with flake8
-      run: |
-        # stop the build if there are Python syntax errors or undefined names
-        flake8 . --count --select=E9,F63,F7,F82 --show-source --statistics
-        # exit-zero treats all errors as warnings. The GitHub editor is 127 chars wide
-        flake8 . --count --exit-zero --max-complexity=10 --statistics
+    - name: Lint Code Base
+      uses: github/super-linter@v3
+      env:
+        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        VALIDATE_PYTHON_PYLINT: false
+        LINTER_RULES_PATH: .
+        PYTHON_BLACK_CONFIG_FILE: pyproject.toml
     - name: Run pluploader --version
       run: |
         pip install .
diff --git a/Dockerfile b/Dockerfile
index c6ccd0a..7c233ba 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,11 +1,11 @@
 FROM python:3.8
 
-ARG PL_VERSION 
+ARG PL_VERSION=">=0.3"
 
 RUN mkdir /workdir
 
-RUN pip3 install pluploader==$PL_VERSION
+RUN pip3 install "pluploader==$PL_VERSION"
 
 WORKDIR /workdir
 
-ENTRYPOINT [ "pluploader" ]%
+ENTRYPOINT [ "pluploader" ]
diff --git a/README.md b/README.md
index aab7c02..5fbbeed 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,16 @@
-## pluploader
+<!-- markdownlint-configure-file
+{
+  "no-bare-urls": false,
+  "no-trailing-punctuation": false,
+  "line-length": false
+}
+-->
+
+# pluploader
 
 ![PyPI version](https://img.shields.io/pypi/v/pluploader?style=flat-square) ![Upload Python Package](https://img.shields.io/github/workflow/status/livelyapps/pluploader/Python%20package/master?style=flat-square)
 
-A simple command line plugin uploader/installer/manager for atlassian product 
+A simple command line plugin uploader/installer/manager for atlassian product
 server instances (Confluence/Jira) written in python(3).
 
 ## Installation
@@ -11,7 +19,7 @@ Regulary tested on Linux (Arch Linux), MacOS and Windows 10.
 
 ### pip (recommended)
 
-```
+```bash
 pip3 install pluploader
 ```
 
@@ -28,11 +36,12 @@ docker pull docker.pkg.github.com/livelyapps/pluploader/pluploader:latest
 
 pluploader can then be run by executing
 
-```
+```bash
 docker run -v "$(pwd)":/workdir -it craftamap/pluploader:v0.4.1
 ```
 
 ## Usage
+
 For a in-depth explanation, see `pluploader --help`
 
 > ℹ This documentation describes the master branch, and not (necessarily) the latest release.
@@ -40,6 +49,7 @@ For a in-depth explanation, see `pluploader --help`
 ### Global Options
 
 You can specify various global options:
+
 - `--base-url <base-url>`, default: `http://localhost:8090`
 - `--user <username>`, default: `admin`
 - `--password <password>`, default: `admin`  
@@ -54,40 +64,40 @@ All Global Options can be overwritten by using a configuration file. See more in
 
 If you are in a maven project, the basic usage is fairly simple. Just type:
 
-```
+```bash
 pluploader --user admin --password admin
 ```
 
-The pluploader then uploads and enables the current artifact specified in the 
+The pluploader then uploads and enables the current artifact specified in the
 pom.xml
 
 If you are not in a maven directory currently, but you want to upload a specific
 file, you can also use the `-f plugin.jar` flag.
 
-If you want to confirm your upload, you can also use the `-i` / 
+If you want to confirm your upload, you can also use the `-i` /
 `--interactive` flag.
 
 It is recommended to use the pluploader with maven. The usage looks like:
 
-```
+```bash
 atlas-mvn clean package && pluploader
 ```
 
 #### Installing apps from the marketplace
 
-pluploader supports downloading apps from the atlassian marketplace to your local 
+pluploader supports downloading apps from the atlassian marketplace to your local
 machine and installing them afterwards. You need to supply either `--mpac-key`,
-which is the normal addon-key, or `--mpac-id` (experimental), which is the 
+which is the normal addon-key, or `--mpac-id` (experimental), which is the
 numeric id of an marketplace id (72307 https://marketplace.atlassian.com/apps/72307)
 
-```
+```bash
 pluploader --mpac-key com.atlassian.confluence.extra.team-calendars
 ```
 
-**NOTE**: 
+**NOTE**:
 If you specify one of the global options, you need to add the `install`-command:
 
-```
+```bash
 pluploader --base-url https://your-confluence.com:8090 install
 ```
 
@@ -110,7 +120,7 @@ indicates that the plugin is disabled.
 In order to retrieve more information about a specific plugin, you can use the
 command `info`.
 
-```
+```bash
 pluploader info com.example.plugin.key
 ```
 
@@ -124,19 +134,20 @@ The commands `enable`, `disable` or `uninstall` follow the same syntax.
 pluploader also supports disabling or enabling all apps using Safe Mode.
 
 To retrieve the status if safe-mode is enabled at the moment, use
-```
+
+```bash
 pluploader safe-mode status
 ```
 
-You can enable and disable safe mode by using 
+You can enable and disable safe mode by using
 
-```
+```bash
 pluploader safe-mode enable
 ```
 
 And
 
-```
+```bash
 pluploader safe-mode disable
 # OR
 pluploader safe-mode disable --keep-state
@@ -148,7 +159,7 @@ You can also use the pluploader to get and set licenses for your plugins.
 
 To get the current license information:
 
-```
+```bash
 pluploader license info com.example.plugin.key
 ```
 
@@ -159,9 +170,9 @@ pluploader license update com.example.plugin.key --license "AAA..."
 ```
 
 > ℹ Pro tip: Use `xargs` to read a license from a file by using
-> 
+>
 > ```bash
-> cat license.txt | xargs pluploader license update --license 
+> cat license.txt | xargs pluploader license update --license
 > ```
 
 You can also apply [timebomb licenses](https://developer.atlassian.com/platform/marketplace/timebomb-licenses-for-testing-server-apps/)
@@ -169,7 +180,7 @@ You can also apply [timebomb licenses](https://developer.atlassian.com/platform/
 by using
 
 ```bash
-pluploader license timebomb com.example.plugin.key --timebomb threehours 
+pluploader license timebomb com.example.plugin.key --timebomb threehours
 ```
 
 You can choose between 3 hours (threehours), 60 seconds (sixtyseconds) and
@@ -178,12 +189,12 @@ You can choose between 3 hours (threehours), 60 seconds (sixtyseconds) and
 To remove an applied license, you can use:
 
 ```bash
-pluploader license delete com.example.plugin.key 
+pluploader license delete com.example.plugin.key
 ```
 
 ### Scheduled Jobs (Confluence - Experimental)
 
-> ℹ This feature is currently experimental and only works in specific version of 
+> ℹ This feature is currently experimental and only works in specific version of
 > Confluence (tested on Confluence 7.5).
 
 Pluploader can also be used to retrieve information about confluence jobs and
@@ -191,45 +202,47 @@ execute them.
 
 You can grab a list of all jobs by running
 
-```
+```bash
 pluploader job list
 ```
 
-Available options are: 
- - `--hide-default` - Hides confluence internal jobs
- - `--print-all-infos` - print more informations
+Available options are:
+
+- `--hide-default` - Hides confluence internal jobs
+- `--print-all-infos` - print more informations
 
 You can also run jobs by running
 
-```
+```bash
 pluploader job run
 ```
 
 Get more information about a job by running
 
-```
+```bash
 pluploader job info
 ```
 
 And disable or enable jobs by running
-```
-pluploader job enable 
+
+```bash
+pluploader job enable
 # AND
 pluploader job disable
 ```
 
-A job can be specified by either using `--id <job id>` or by using 
-`--idx <job index in list>`. If no job is specified, you will be asked 
+A job can be specified by either using `--id <job id>` or by using
+`--idx <job index in list>`. If no job is specified, you will be asked
 interactively.
 
 ### Configuration
 
-If you don't want to write the username or password (or any other global 
-parameter) each time, you can use a filed called `.pluprc`, either placed in 
-your current maven project or/and in your home directory. A example looks like 
+If you don't want to write the username or password (or any other global
+parameter) each time, you can use a filed called `.pluprc`, either placed in
+your current maven project or/and in your home directory. A example looks like
 this:
 
-```
+```bash
 base_url: https://example.com:8090
 user: admin
 password: admin
@@ -237,7 +250,7 @@ password: admin
 
 ### Environment variables
 
-You can also specify username, password and base url by using `PLUP_USER`, 
+You can also specify username, password and base url by using `PLUP_USER`,
 `PLUP_PASSWORD` and `PLUP_BASEURL`.
 
 ## Development
@@ -248,7 +261,7 @@ pluploader uses [poetry](https://python-poetry.org/) as it's package manager. As
 
 ### Why would I use the pluploader over X?
 
-Of course, you can use whatever tool you want to. 
+Of course, you can use whatever tool you want to.
 
 ### Why would I use the pluploader over the UPM?
 
diff --git a/pluploader/confluence/jobs/jobs.py b/pluploader/confluence/jobs/jobs.py
index 9689b60..2f2f0a9 100644
--- a/pluploader/confluence/jobs/jobs.py
+++ b/pluploader/confluence/jobs/jobs.py
@@ -125,11 +125,7 @@ def disable_job(self, job: Job, token: typing.Optional[str] = None,) -> bool:
         response = self.session.get(request_url)
         return response.status_code == 200
 
-    def enable_job(
-        self,
-        job: Job,
-        token: typing.Optional[str] = None,
-    ) -> bool:
+    def enable_job(self, job: Job, token: typing.Optional[str] = None,) -> bool:
         if token is None:
             token = self.get_token()
         request_url = self.base_url.copy()
diff --git a/pluploader/job.py b/pluploader/job.py
index bf1b9dc..8279bee 100644
--- a/pluploader/job.py
+++ b/pluploader/job.py
@@ -1,13 +1,14 @@
 import logging
 import shutil
 import sys
+import typing
 
 import requests
 import typer
-import typing
+from colorama import Fore
+
 from .confluence.jobs import jobs
 from .confluence.jobs.jobs import JobsScraper
-from colorama import Fore
 
 app_job = typer.Typer()
 
diff --git a/pluploader/main.py b/pluploader/main.py
index 699f0bc..7d62ff3 100755
--- a/pluploader/main.py
+++ b/pluploader/main.py
@@ -22,8 +22,8 @@
 from .mpac import download
 from .mpac.exceptions import MpacAppNotFoundError, MpacAppVersionNotFoundError
 from .safemode import app_safemode
-from .upm.upmcloudapi import UpmCloudApi
 from .upm.upmapi import UpmApi
+from .upm.upmcloudapi import UpmCloudApi
 from .util import atlassian_jar as jar
 from .util import pathutil
 
diff --git a/pluploader/mpac/download.py b/pluploader/mpac/download.py
index 524ed30..73d05bb 100644
--- a/pluploader/mpac/download.py
+++ b/pluploader/mpac/download.py
@@ -6,8 +6,7 @@
 import requests
 from furl import furl
 
-from . import scraper
-from . import rest
+from . import rest, scraper
 
 
 def _download_file_to_tmp_dir(url: furl) -> os.PathLike:
diff --git a/pluploader/mpac/rest.py b/pluploader/mpac/rest.py
index 63514d0..7fc2c00 100644
--- a/pluploader/mpac/rest.py
+++ b/pluploader/mpac/rest.py
@@ -3,10 +3,11 @@
 """
 
 import dataclasses
+import typing
 
 import requests
-import typing
 from furl import furl
+
 from .exceptions import MpacAppVersionNotFoundError
 
 BASE_URL = furl("https://marketplace.atlassian.com/rest/2")
diff --git a/pluploader/mpac/scraper.py b/pluploader/mpac/scraper.py
index 33794e9..036e5b5 100644
--- a/pluploader/mpac/scraper.py
+++ b/pluploader/mpac/scraper.py
@@ -4,7 +4,8 @@
 import requests
 from bs4 import BeautifulSoup
 from furl import furl
-from .exceptions import (MpacAppNotFoundError, MpacAppVersionNotFoundError)
+
+from .exceptions import MpacAppNotFoundError, MpacAppVersionNotFoundError
 
 VERSION_HISTORY_URL = "https://marketplace.atlassian.com/apps/{}/WILDCARD/version-history"
 
diff --git a/pluploader/safemode.py b/pluploader/safemode.py
index 758014b..d1f9892 100644
--- a/pluploader/safemode.py
+++ b/pluploader/safemode.py
@@ -1,9 +1,10 @@
-import typer
-from colorama import Fore
 import logging
-import requests
 import sys
 
+import requests
+import typer
+from colorama import Fore
+
 from .upm.upmapi import UpmApi
 
 app_safemode = typer.Typer()
diff --git a/pluploader/upm/upmcloudapi.py b/pluploader/upm/upmcloudapi.py
index 2b5c3e4..50e9c42 100644
--- a/pluploader/upm/upmcloudapi.py
+++ b/pluploader/upm/upmcloudapi.py
@@ -3,8 +3,8 @@
 import requests
 from furl import furl
 
-from .upmapi import PluginDto, UpmApi
 from .exceptions import UploadFailedException
+from .upmapi import PluginDto, UpmApi
 
 
 class UpmCloudApi(UpmApi):
diff --git a/pluploader/util/atlassian_jar.py b/pluploader/util/atlassian_jar.py
index f713a5e..c28902d 100644
--- a/pluploader/util/atlassian_jar.py
+++ b/pluploader/util/atlassian_jar.py
@@ -4,7 +4,9 @@
 
 import pathlib
 from zipfile import ZipFile
+
 from bs4 import BeautifulSoup
+
 from .pathutil import PluginKeyNotFoundError