diff --git a/userapi/storage/postgres/cross_signing_keys_table.go b/userapi/storage/postgres/cross_signing_keys_table.go
index 70592cf6..61b15b88 100644
--- a/userapi/storage/postgres/cross_signing_keys_table.go
+++ b/userapi/storage/postgres/cross_signing_keys_table.go
@@ -12,6 +12,8 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/element-hq/dendrite/userapi/storage/postgres/deltas"
+
 	"github.com/element-hq/dendrite/internal"
 	"github.com/element-hq/dendrite/internal/sqlutil"
 	"github.com/element-hq/dendrite/userapi/storage/tables"
@@ -25,7 +27,6 @@ CREATE TABLE IF NOT EXISTS keyserver_cross_signing_keys (
     user_id TEXT NOT NULL,
 	key_type SMALLINT NOT NULL,
 	key_data TEXT NOT NULL,
-    updatable_without_uia_before_ms BIGINT DEFAULT NULL,
 	PRIMARY KEY (user_id, key_type)
 );
 `
@@ -64,6 +65,17 @@ func NewPostgresCrossSigningKeysTable(db *sql.DB) (tables.CrossSigningKeys, erro
 	if err != nil {
 		return nil, err
 	}
+	m := sqlutil.NewMigrator(db)
+	m.AddMigrations(
+		sqlutil.Migration{
+			Version: "userapi: add x-signing updatable_without_uia_before_ms",
+			Up:      deltas.UpAddXSigningUpdatableWithoutUIABeforeMs,
+		},
+	)
+	err = m.Up(context.Background())
+	if err != nil {
+		return nil, err
+	}
 	return s, sqlutil.StatementList{
 		{&s.selectCrossSigningKeysForUserStmt, selectCrossSigningKeysForUserSQL},
 		{&s.selectCrossSigningKeysForUserAndKeyTypeStmt, selectCrossSigningKeysForUserAndKeyTypeSQL},
diff --git a/userapi/storage/postgres/deltas/2025011001110000_add_xsigning_updatable_without_uia_before_ms.go b/userapi/storage/postgres/deltas/2025011001110000_add_xsigning_updatable_without_uia_before_ms.go
new file mode 100644
index 00000000..11f32aec
--- /dev/null
+++ b/userapi/storage/postgres/deltas/2025011001110000_add_xsigning_updatable_without_uia_before_ms.go
@@ -0,0 +1,23 @@
+package deltas
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+)
+
+func UpAddXSigningUpdatableWithoutUIABeforeMs(ctx context.Context, tx *sql.Tx) error {
+	_, err := tx.ExecContext(ctx, `ALTER TABLE keyserver_cross_signing_keys ADD COLUMN IF NOT EXISTS updatable_without_uia_before_ms BIGINT DEFAULT NULL;`)
+	if err != nil {
+		return fmt.Errorf("failed to execute upgrade: %w", err)
+	}
+	return nil
+}
+
+func DownAddXSigningUpdatableWithoutUIABeforeMs(ctx context.Context, tx *sql.Tx) error {
+	_, err := tx.ExecContext(ctx, `ALTER TABLE keyserver_cross_signing_keys DROP COLUMN IF EXISTS updatable_without_uia_before_ms;`)
+	if err != nil {
+		return fmt.Errorf("failed to execute downgrade: %w", err)
+	}
+	return nil
+}
diff --git a/userapi/storage/sqlite3/cross_signing_keys_table.go b/userapi/storage/sqlite3/cross_signing_keys_table.go
index b86bfdf0..19f9b6c1 100644
--- a/userapi/storage/sqlite3/cross_signing_keys_table.go
+++ b/userapi/storage/sqlite3/cross_signing_keys_table.go
@@ -12,6 +12,8 @@ import (
 	"fmt"
 	"time"
 
+	"github.com/element-hq/dendrite/userapi/storage/sqlite3/deltas"
+
 	"github.com/element-hq/dendrite/internal"
 	"github.com/element-hq/dendrite/internal/sqlutil"
 	"github.com/element-hq/dendrite/userapi/storage/tables"
@@ -25,7 +27,6 @@ CREATE TABLE IF NOT EXISTS keyserver_cross_signing_keys (
     user_id TEXT NOT NULL,
 	key_type INTEGER NOT NULL,
 	key_data TEXT NOT NULL,
-    updatable_without_uia_before_ms BIGINT DEFAULT NULL,
 	PRIMARY KEY (user_id, key_type)
 );
 `
@@ -63,6 +64,17 @@ func NewSqliteCrossSigningKeysTable(db *sql.DB) (tables.CrossSigningKeys, error)
 	if err != nil {
 		return nil, err
 	}
+	m := sqlutil.NewMigrator(db)
+	m.AddMigrations(
+		sqlutil.Migration{
+			Version: "userapi: add x-signing updatable_without_uia_before_ms",
+			Up:      deltas.UpAddXSigningUpdatableWithoutUIABeforeMs,
+		},
+	)
+	err = m.Up(context.Background())
+	if err != nil {
+		return nil, err
+	}
 	return s, sqlutil.StatementList{
 		{&s.selectCrossSigningKeysForUserStmt, selectCrossSigningKeysForUserSQL},
 		{&s.selectCrossSigningKeysForUserAndKeyTypeStmt, selectCrossSigningKeysForUserAndKeyTypeSQL},
diff --git a/userapi/storage/sqlite3/deltas/2025011001110000_add_xsigning_updatable_without_uia_before_ms.go b/userapi/storage/sqlite3/deltas/2025011001110000_add_xsigning_updatable_without_uia_before_ms.go
new file mode 100644
index 00000000..2935509a
--- /dev/null
+++ b/userapi/storage/sqlite3/deltas/2025011001110000_add_xsigning_updatable_without_uia_before_ms.go
@@ -0,0 +1,23 @@
+package deltas
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+)
+
+func UpAddXSigningUpdatableWithoutUIABeforeMs(ctx context.Context, tx *sql.Tx) error {
+	_, err := tx.ExecContext(ctx, `ALTER TABLE keyserver_cross_signing_keys ADD COLUMN updatable_without_uia_before_ms BIGINT DEFAULT NULL;`)
+	if err != nil {
+		return fmt.Errorf("failed to execute upgrade: %w", err)
+	}
+	return nil
+}
+
+func DownAddXSigningUpdatableWithoutUIABeforeMs(ctx context.Context, tx *sql.Tx) error {
+	_, err := tx.ExecContext(ctx, `ALTER TABLE keyserver_cross_signing_keys DROP COLUMN updatable_without_uia_before_ms;`)
+	if err != nil {
+		return fmt.Errorf("failed to execute downgrade: %w", err)
+	}
+	return nil
+}