diff --git a/python/lsst/sdm_schemas/schemas/apdb.yaml b/python/lsst/sdm_schemas/schemas/apdb.yaml
index 41aa3cf9..35aea902 100644
--- a/python/lsst/sdm_schemas/schemas/apdb.yaml
+++ b/python/lsst/sdm_schemas/schemas/apdb.yaml
@@ -1,7 +1,7 @@
 ---
 name: "ApdbSchema"
 "@id": "#apdbSchema"
-version: "2.0.1"
+version: "4.0.0"
 description: The Alert Production Database (APDB) contains the catalogs resulting from
   image differencing during nightly Prompt Processing as well as the results of
   daily Solar System Processing.