diff --git a/docs/appendices/e.rst b/docs/appendices/e.rst
index dd1bf65..1ec2114 100644
--- a/docs/appendices/e.rst
+++ b/docs/appendices/e.rst
@@ -48,7 +48,7 @@ Here's the list:
   | You can get the ODBC manual from here, as a .hlp file.
 
 * | **miniSQL**
-  | http://www.hughes.com.au/
+  | https://hughestech.com.au/products/msql/
   | A Unix-oriented SQL-89 implementation.
 
 * | **NIST**
diff --git a/docs/conf.py b/docs/conf.py
index 89eb6ef..7373cb1 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -1,8 +1,6 @@
 from crate.theme.rtd.conf.sql_99 import *
 
-html_theme_options.update({
-    "canonical_url": "https://sql-99.readthedocs.io",
-})
+html_baseurl = "https://sql-99.readthedocs.io/"
 
 # Disable version chooser.
 html_context.update({
@@ -10,3 +8,8 @@
     "current_version": None,
     "versions": [],
 })
+
+linkcheck_ignore = [
+    r"https://www.mysql.com/",
+    r"http://www.hughes.com.au/*",
+]