diff --git a/docs/_extra/robots.txt b/docs/_extra/robots.txt
index afc384d..ea7e2a5 100644
--- a/docs/_extra/robots.txt
+++ b/docs/_extra/robots.txt
@@ -1,4 +1,4 @@
 User-agent: *
 Disallow:
 
-Sitemap: https://sql-99.readthedocs.io/en/latest/site.xml
+Sitemap: https://sql-99.readthedocs.io/site.xml
diff --git a/docs/conf.py b/docs/conf.py
index 52c38ca..3eab6dd 100755
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -1,8 +1,12 @@
 from crate.theme.rtd.conf.sql_99 import *
 
-# NOTE: `html_baseurl` used to be pinned to https://sql-99.readthedocs.io/ here.
-# It now comes from `crate.theme.rtd.conf.sql_99`, which derives it from the
-# Read the Docs environment for the docs.cratedb.com migration PoC.
+html_baseurl = "https://sql-99.readthedocs.io/"
+
+# This book is not versioned. Keep in step with the "URL versioning scheme"
+# setting on Read the Docs, which must be "Single version without
+# translations" - nothing enforces that the two agree.
+version = ""
+sitemap_url_scheme = "{link}"
 
 # Disable version chooser.
 html_context.update({
diff --git a/docs/requirements.txt b/docs/requirements.txt
index 21c9592..ced14fe 100644
--- a/docs/requirements.txt
+++ b/docs/requirements.txt
@@ -1,5 +1 @@
-# TEMPORARY, for the docs.cratedb.com migration proof of concept.
-#
-# Restore the unpinned `crate-docs-theme` once the migration theme ships as a
-# final release.
-crate-docs-theme==0.51.0.dev0
+crate-docs-theme