diff --git a/readthedocs.yml b/readthedocs.yml
index 8967c8a2..55a1f927 100644
--- a/readthedocs.yml
+++ b/readthedocs.yml
@@ -12,3 +12,4 @@ python:
     - requirements: requirements-doc.txt
     - method: setuptools
       path: .
+  system_packages: true