diff --git a/.readthedocs.yml b/.readthedocs.yml
index 49b3a5b..a91d481 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -7,3 +7,6 @@ python:
    version: "3.9"
    install:
    - requirements: docs_requirements.txt
+
+build:
+  image: testing