diff --git a/.readthedocs.yml b/.readthedocs.yml
index 0a65670..2ef2db6 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -3,7 +3,7 @@ formats:
     - pdf
 
 python:
-    version: 3.8
+    version: 3.7
     pip_install: true
     extra_requirements:
         - docs