diff --git a/{{ cookiecutter.__dirname }}/{% if cookiecutter.sphinx_docs in ['y', 'yes'] %}.readthedocs.yaml{% endif %} b/{{ cookiecutter.__dirname }}/{% if cookiecutter.sphinx_docs in ['y', 'yes'] %}.readthedocs.yaml{% endif %}
index fcb7778..3cd488c 100644
--- a/{{ cookiecutter.__dirname }}/{% if cookiecutter.sphinx_docs in ['y', 'yes'] %}.readthedocs.yaml{% endif %}	
+++ b/{{ cookiecutter.__dirname }}/{% if cookiecutter.sphinx_docs in ['y', 'yes'] %}.readthedocs.yaml{% endif %}	
@@ -9,7 +9,7 @@
 version: 2
 
 build:
-  os: ubuntu-latest
+  os: ubuntu-lts-latest
   tools:
     python: "3"