diff --git a/backend/src/api/database-migration.ts b/backend/src/api/database-migration.ts
index c9c1da8e8..f68f7f17d 100644
--- a/backend/src/api/database-migration.ts
+++ b/backend/src/api/database-migration.ts
@@ -6,7 +6,7 @@ import logger from '../logger';
 const sleep = (ms: number) => new Promise(res => setTimeout(res, ms));
 
 class DatabaseMigration {
-  private static currentVersion = 14;
+  private static currentVersion = 15;
   private queryTimeout = 120000;
   private statisticsAddedIndexed = false;
 
@@ -175,6 +175,12 @@ class DatabaseMigration {
         await this.$executeQuery(connection, 'ALTER TABLE `hashrates` MODIFY `pool_id` SMALLINT UNSIGNED NOT NULL DEFAULT "0"');
       }
 
+      if (databaseSchemaVersion < 15 && isBitcoin === true) {
+        logger.warn(`'hashrates' table has been truncated. Re-indexing from scratch.`);
+        await this.$executeQuery(connection, 'TRUNCATE hashrates;'); // Need to re-index
+        await this.$executeQuery(connection, 'ALTER TABLE `hashrates` MODIFY `avg_hashrate` DOUBLE UNSIGNED NOT NULL DEFAULT "0"');
+      }
+
       connection.release();
     } catch (e) {
       connection.release();