diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@
 **Background**
 * Remove (comment out) option to pull references from S3
 * Make pull references from BioHPC default (including in biohpc.config)
+* Start using new gudmaprbk dockerhub (images autobuilt)
 
 *Known Bugs*
 * Datahub reference pull uses dev.gudmap.org as source until referencencs are placed on production