diff --git a/scripts/ci.sh b/scripts/ci.sh
index 99949e207e..63ba8dfaeb 100755
--- a/scripts/ci.sh
+++ b/scripts/ci.sh
@@ -10,6 +10,12 @@ rm -r /tmp/mdoc-out/
 bundle exec jekyll build
 
 # Checking for docs.scala-lang/blob/master leads to a chicken and egg problem because of the edit links of new pages.
-bundle exec htmlproofer ./_site/ --only-4xx --http-status-ignore "401,429" --empty-alt-ignore --allow-hash-href --url-ignore '/https://github.com/scala/docs.scala-lang/blob/master/.*/,/www.oracle.com/'
+# The docs at http://dotty.epfl.ch/api/scala/tasty/ are temporarily not available.
+bundle exec htmlproofer ./_site/\
+  --only-4xx\
+  --http-status-ignore "400,401,429"\
+  --empty-alt-ignore\
+  --allow-hash-href\
+  --url-ignore '/https://github.com/scala/docs.scala-lang/blob/master/.*/,/www.oracle.com/,/.*dotty.epfl.ch\/api\/scala\/tasty\/Reflection.*/'
 
 exit 0