diff --git a/_axe-baseline.json b/_axe-baseline.json
index 9dfc074576..d35e9a9ec7 100644
--- a/_axe-baseline.json
+++ b/_axe-baseline.json
@@ -655,6 +655,12 @@
       "impact": "minor",
       "note": "third-party: Observable Inputs, no upstream issue. The Inputs.table select-all header cell holds only an unlabeled checkbox, so axe reports an empty header. Scoped to these pages because th matches any empty header cell."
     },
+    {
+      "signature": "empty-table-header :: #oi-3a86ea > table > thead > tr > th",
+      "pages": ["docs/interactive/ojs/data-sources.html"],
+      "impact": "minor",
+      "note": "third-party: Observable Inputs, no upstream issue. The Inputs.table select-all header cell holds only an unlabeled checkbox, so axe reports an empty header. On this page axe anchors the selector to the table's id, so the th entry does not match. When Quarto updates Inputs (quarto-dev/quarto-cli#14934), the namespace becomes inputs-3a86ea, so replace this entry."
+    },
     {
       "signature": "aria-allowed-role :: .leaflet-marker-icon",
       "pages": ["docs/interactive/index.html", "docs/interactive/widgets/jupyter.html"],