diff --git a/aggregator_core/src/datastore.rs b/aggregator_core/src/datastore.rs
index 87ff889f6..fdde70c0f 100644
--- a/aggregator_core/src/datastore.rs
+++ b/aggregator_core/src/datastore.rs
@@ -100,7 +100,7 @@ macro_rules! supported_schema_versions {
 // version is seen, [`Datastore::new`] fails.
 //
 // Note that the latest supported version must be first in the list.
-supported_schema_versions!(2, 1);
+supported_schema_versions!(2);
 
 /// Datastore represents a datastore for Janus, with support for transactional reads and writes.
 /// In practice, Datastore instances are currently backed by a PostgreSQL database.