diff --git a/docs/conf.py b/docs/conf.py
index 22626a36d..5836d0d7d 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -108,9 +108,6 @@ rst_prolog += f"\n.. |DPY_VERSION| replace:: {dpy_version}"
 #
 html_theme = "sphinx_rtd_theme"
 
-# This will be needed until sphinx_rtd_theme supports the html5 writer
-html4_writer = True
-
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
 # documentation.