diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index b18bf1eaf4..436b3ff101 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -15,7 +15,6 @@ sphinx:
 # Install regular dependencies.
 # Then, install special pinning for RTD.
 python:
-  system_packages: false
   install:
     - method: pip
       path: .