diff --git a/readthedocs.yml b/readthedocs.yml
index 4f1e597..3f16e4d 100644
--- a/readthedocs.yml
+++ b/readthedocs.yml
@@ -1,5 +1,5 @@
 python:
-    version: 3.5
+    version: 3
     setup_py_install: true
 formats:
     - none