diff --git a/Doc/sphinx/conf.py b/Doc/sphinx/conf.py
index 9c43bdea0..7a3c4312d 100644
--- a/Doc/sphinx/conf.py
+++ b/Doc/sphinx/conf.py
@@ -257,3 +257,10 @@
 
 # Allow duplicate toc entries.
 #epub_tocdup = True
+
+
+# -- Options for linkcheck builder ---------------------------------------------
+
+linkcheck_workers = 1
+linkcheck_timeout = 30
+