diff --git a/readthedocs.yml b/readthedocs.yml
index 360fead..7ff6f6a 100644
--- a/readthedocs.yml
+++ b/readthedocs.yml
@@ -7,4 +7,5 @@ build:
 
 python:
   install:
+    - requirements: requirements.txt
     - requirements: doc/requirements.txt