diff --git a/docs/adr/0027-tracked-black-level-supersedes-stored-bias.md b/docs/adr/0028-tracked-black-level-supersedes-stored-bias.md
similarity index 100%
rename from docs/adr/0027-tracked-black-level-supersedes-stored-bias.md
rename to docs/adr/0028-tracked-black-level-supersedes-stored-bias.md
diff --git a/docs/ax/sqm.md b/docs/ax/sqm.md
index d63e55e19..b27532a4a 100644
--- a/docs/ax/sqm.md
+++ b/docs/ax/sqm.md
@@ -225,7 +225,7 @@ dark current from sky, because both are linear in exposure. Until a confident
 fit exists, `pedestal()` returns `None` and the caller falls back to the
 profile constant. Trust is a lease rather than a latch: an accepted fit expires
 after `max_age_seconds` and must be re-earned. See
-[ADR 0027](../adr/0027-tracked-black-level-supersedes-stored-bias.md) for the
+[ADR 0028](../adr/0028-tracked-black-level-supersedes-stored-bias.md) for the
 decision and its gates.
 
 Read noise is zero-mean RMS uncertainty and is never subtracted as signal.
@@ -359,5 +359,5 @@ See [`sqm/CONTEXT.md`](./sqm/CONTEXT.md) for canonical terminology,
 [`ADR-0022`](../adr/0022-sqm-radiometer-first.md) for radiometer-first ownership,
 [`ADR-0002`](../adr/0002-sqm-published-value-uncorrected.md) for the
 no-altitude-correction decision, and
-[`ADR-0027`](../adr/0027-tracked-black-level-supersedes-stored-bias.md) for why a
+[`ADR-0028`](../adr/0028-tracked-black-level-supersedes-stored-bias.md) for why a
 tracked black level outranks any stored bias.
diff --git a/docs/ax/sqm/CONTEXT.md b/docs/ax/sqm/CONTEXT.md
index 8db63235d..5cc73b775 100644
--- a/docs/ax/sqm/CONTEXT.md
+++ b/docs/ax/sqm/CONTEXT.md
@@ -129,7 +129,8 @@ moves with sensor state, so this measurement supersedes both the profile
 constant and any wizard-measured bias offset once its fit is **leased**. It
 needs no lens cap and no dark frame. Say "tracked black level", not "auto
 bias" or "dynamic calibration" — it measures one specific quantity and does
-not calibrate anything else. See ADR 0027.
+not calibrate anything else. See
+[ADR 0028](../../adr/0028-tracked-black-level-supersedes-stored-bias.md).
 
 **Lease**:
 The gate that decides whether a tracked black level is trusted enough to