diff --git a/.readthedocs.yml b/.readthedocs.yml
index 25de6e33f1..ab9f4daf38 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -11,8 +11,8 @@ sphinx:
 
 python:
   version: 3.7
-   install:
+  install:
     - method: pip
       path: .
       extra_requirements:
-          - docs
+        - docs