diff --git a/readthedocs.yml b/readthedocs.yml
index 1495b76..a7dae48 100644
--- a/readthedocs.yml
+++ b/readthedocs.yml
@@ -3,6 +3,7 @@ version: 2
 python:
    version: 3.7
    install:
+       - requirements: requirements.txt
        - method: pip
          path: .
 sphinx: