diff --git a/.readthedocs.yml b/.readthedocs.yml
index 46f01501..19f0fb1d 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -1,13 +1,14 @@
 version: 2
 
 build:
-  image: latest
+  os: ubuntu-20.04
+  tools:
+    python: '3.7'
 
 sphinx:
   fail_on_warning: true
 
 python:
-  version: 3.7
   install:
     - method: pip
       path: .