diff --git a/src/third_party/apache-annotator.md b/src/third_party/apache-annotator.md
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+Forked from:
+https://github.com/apache/incubator-annotator/tree/cb534ed53f1356a657d2ed69244f3b600c77490d
+
+Compare / code-diff with latest commit on main branch:
+https://github.com/apache/incubator-annotator/compare/cb534ed53f1356a657d2ed69244f3b600c77490d...main
+
+Related Thorium PR: https://github.com/edrlab/thorium-reader/pull/2704