diff --git a/server/internal/infrastructure/db/sqlite/migration/20250410112433_fix_txid_index.down.sql b/server/internal/infrastructure/db/sqlite/migration/20250410112433_fix_txid_index.down.sql
new file mode 100644
index 000000000..a2db002b8
--- /dev/null
+++ b/server/internal/infrastructure/db/sqlite/migration/20250410112433_fix_txid_index.down.sql
@@ -0,0 +1,3 @@
+DROP INDEX IF EXISTS idx_round_txid;
+
+CREATE UNIQUE INDEX IF NOT EXISTS idx_round_txid ON round(txid);
\ No newline at end of file
diff --git a/server/internal/infrastructure/db/sqlite/migration/20250410112433_fix_txid_index.up.sql b/server/internal/infrastructure/db/sqlite/migration/20250410112433_fix_txid_index.up.sql
new file mode 100644
index 000000000..4265ee1ad
--- /dev/null
+++ b/server/internal/infrastructure/db/sqlite/migration/20250410112433_fix_txid_index.up.sql
@@ -0,0 +1,3 @@
+DROP INDEX IF EXISTS idx_round_txid;
+
+CREATE INDEX IF NOT EXISTS idx_round_txid ON round(txid);
\ No newline at end of file