diff --git a/README.md b/README.md
index d017560..2ed60ca 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ package implements.
 ## Raw-parquet caveat: `survey_weight` is not an aggregation weight
 
 Users reading the corpus parquet directly (DuckDB, arrow) will see a
-`survey_weight` column (schema v5, col 26). It is legacy Census IndFin
+`survey_weight` column (schema v6, col 28). It is legacy Census IndFin
 sample-design **metadata passed through verbatim** — the Census Bureau's own
 source documentation says it "is for informational purposes only and should
 not be used to derive any other statistics" (`_ReadMe_First_IndFin.txt`;