diff --git a/docs/source/rtd-req.txt b/docs/source/rtd-req.txt
index 8b60e67..4acf98b 100644
--- a/docs/source/rtd-req.txt
+++ b/docs/source/rtd-req.txt
@@ -5,6 +5,5 @@ pandas
 requests
 sqlalchemy
 psycopg2
-Sphinx==5.3.0
-sphinx-copybutton==0.5.1
+sphinx-copybutton
 sphinx-rtd-theme==1.1.1