diff --git a/docs/conf.py b/docs/conf.py
index 27c9840..127c346 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -82,6 +82,7 @@
 linkcheck_ignore = [
     "https://sail.usc.edu/",
     "http://sphinx-doc.org/",
+    "https://opus.bibliothek.uni-augsburg.de/",
 ]