diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 3995ed39..522d80f9 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -4,9 +4,9 @@
 version: 2
 
 build:
-  os: ubuntu-22.04
+  os: "ubuntu-22.04"
   tools:
-    python: miniconda3-4.7
+    python: "miniconda3-4.7"
 
 sphinx:
   configuration: docs/source/conf.py
@@ -15,7 +15,6 @@ conda:
   file: docs/environment.yml
 
 python:
-  - version: 3.8
   install:
     - requirements: extra_requirements/requirements-tests.txt
     - method: pip