diff --git a/.readthedocs.yml b/.readthedocs.yml
new file mode 100644
index 0000000..5ecf1c9
--- /dev/null
+++ b/.readthedocs.yml
@@ -0,0 +1,27 @@
+version: 2
+formats:
+  - pdf
+  - epub
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+  apt_packages:
+    - graphviz
+    - libenchant-2-2
+    - gcc
+    - libcups2-dev
+    - python3-dev
+sphinx:
+  configuration: doc/conf.py
+submodules:
+  include:
+    - capabilities-data
+  recursive: true
+
+python:
+  install:
+    - requirements: doc/requirements.txt
+    - method: pip
+      path: .
+  system_packages: true
diff --git a/CONTRIBUTING.rst b/CONTRIBUTING.rst
index 7f6b40f..096bbb6 100644
--- a/CONTRIBUTING.rst
+++ b/CONTRIBUTING.rst
@@ -17,23 +17,20 @@ Author-list
 
 This project keeps a list of authors. This can be auto-generated by calling `./doc/generate-authors.sh`.
 When contributing the first time, please include a commit with the output of this script in place.
-Otherwise the integration-check will fail.
 
 When you change your username or mail-address, please also update the `.mailmap` and the authors-list.
-You can find a good documentation on the mapping-feature in the `documentation of git-shortlog <https://git-scm.com/docs/git-shortlog#_mapping_authors>`_.
+You can find a good documentation on the mapping-feature in the
+`documentation of git-shortlog <https://git-scm.com/docs/git-shortlog#_mapping_authors>`_.
 
 Style-Guide
 -----------
 
 When writing code please try to stick to these rules.
 
-PEP8
-^^^^
-The entire codebase adheres to the rules of PEP8.
-These rules are enforced by running `flake8` in the integration-checks.
-Please adhere to these rules as your contribution can only be merged if the check succeeds.
-You can use flake8 or similar tools locally in order to check your code.
-Apart from that the travis-log and the check by Landscape will provide you with hints.
+Black Code Style
+^^^^^^^^^^^^^^^^
+This project is formatted with the auto formatter `black <https://github.com/psf/black>`_.
+Please format your contributions with black, otherwise they will be rejected.
 
 GIT
 ^^^
diff --git a/doc/conf.py b/doc/conf.py
index 33290d6..9696642 100644
--- a/doc/conf.py
+++ b/doc/conf.py
@@ -122,6 +122,7 @@ pygments_style = "sphinx"
 # a list of builtin themes.
 if on_rtd:
     html_theme = "default"
+    print("recognized execution on RTD")
 else:
     try:
         import sphinx_rtd_theme
diff --git a/doc/requirements.txt b/doc/requirements.txt
index b5f0851..6d4758d 100644
--- a/doc/requirements.txt
+++ b/doc/requirements.txt
@@ -2,7 +2,7 @@ pyusb
 Pillow>=2.0
 qrcode>=4.0
 pyserial
-sphinx-rtd-theme
+sphinx-rtd-theme==1.2.0
 setuptools
 setuptools-scm
 docutils>=0.12
diff --git a/readthedocs.yml b/readthedocs.yml
deleted file mode 100644
index d34f875..0000000
--- a/readthedocs.yml
+++ /dev/null
@@ -1,7 +0,0 @@
-formats:
-  - pdf
-  - epub
-requirements_file: doc/requirements.txt
-python:
-  version: 3
-  setup_py_install: true
\ No newline at end of file