diff --git a/.readthedocs.yaml b/.readthedocs.yaml
new file mode 100644
index 0000000..bb8dc9d
--- /dev/null
+++ b/.readthedocs.yaml
@@ -0,0 +1,9 @@
+version: 2
+build:
+ os: ubuntu-lts-latest
+ tools:
+  python: latest
+python:
+ install:
+  - requirements: .readthedocs/requirements.txt
+formats: all
diff --git a/.readthedocs/requirements.txt b/.readthedocs/requirements.txt
new file mode 100644
index 0000000..6c5d5d4
--- /dev/null
+++ b/.readthedocs/requirements.txt
@@ -0,0 +1 @@
+sphinx-rtd-theme
diff --git a/docs/conf.py b/docs/conf.py
index 03def9b..5a3f366 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -3,13 +3,14 @@
 import os
 
 travis_ci = os.environ.get("TRAVIS") == 'true'
+rtd = os.environ.get("READTHEDOCS") == 'True'
 
 needs_sphinx = '1.3'
 extensions = []
 source_suffix = ['.rst']
 
 project = u'mcu-uuid-telnet'
-copyright = u'2019-2021, Simon Arlott'
+copyright = u'2019-2024, Simon Arlott'
 author = u'Simon Arlott'
 
 master_doc = 'index'
@@ -23,5 +24,8 @@
 highlight_language = 'c++'
 todo_include_todos = False
 
+if rtd:
+	html_theme = 'sphinx_rtd_theme'
+
 linkcheck_timeout = 60
 linkcheck_ignore = [r'https://github.com/.+/.+/(compare|commits)/.+']