diff --git a/roomserver/storage/postgres/state_block_table.go b/roomserver/storage/postgres/state_block_table.go
index 4523d18bb7..7ae987d6d4 100644
--- a/roomserver/storage/postgres/state_block_table.go
+++ b/roomserver/storage/postgres/state_block_table.go
@@ -64,7 +64,7 @@ const insertStateDataSQL = "" +
 
 const bulkSelectStateBlockEntriesSQL = "" +
 	"SELECT state_block_nid, event_nids" +
-	" FROM roomserver_state_block WHERE state_block_nid = ANY($1)"
+	" FROM roomserver_state_block WHERE state_block_nid = ANY($1) ORDER BY state_block_nid ASC"
 
 type stateBlockStatements struct {
 	insertStateDataStmt             *sql.Stmt
diff --git a/roomserver/storage/sqlite3/state_block_table.go b/roomserver/storage/sqlite3/state_block_table.go
index cfb2a49e53..5cb21e91cb 100644
--- a/roomserver/storage/sqlite3/state_block_table.go
+++ b/roomserver/storage/sqlite3/state_block_table.go
@@ -57,7 +57,7 @@ const insertStateDataSQL = `
 
 const bulkSelectStateBlockEntriesSQL = "" +
 	"SELECT state_block_nid, event_nids" +
-	" FROM roomserver_state_block WHERE state_block_nid IN ($1)"
+	" FROM roomserver_state_block WHERE state_block_nid IN ($1) ORDER BY state_block_nid ASC"
 
 type stateBlockStatements struct {
 	db                              *sql.DB