Use build.os in readthedocs.yaml

diff --git a/.readthedocs.yml b/.readthedocs.yml
index 5319d1fb787cc16e990a0f2592fc906d7dbfe5ef..a9b4e95c58114445ff95acdb04d0d5bcaf1e4ba8 100644 (file)
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -7,8 +7,12 @@
 # Required
 version: 2
 
+build:
+  os: "ubuntu-20.04"
+  tools:
+    python: "3.7"
+
 python:
-  version: "3.7"
   install:
     - requirements: docs/requirements.txt
     - requirements: requirements.txt