diff --git a/backend/src/api/database-migration.ts b/backend/src/api/database-migration.ts
index 278cd2631..81f2caa44 100644
--- a/backend/src/api/database-migration.ts
+++ b/backend/src/api/database-migration.ts
@@ -655,6 +655,7 @@ class DatabaseMigration {
 
       await this.$executeQuery('TRUNCATE hashrates');
       await this.$executeQuery('TRUNCATE difficulty_adjustments');
+      await this.$executeQuery(`UPDATE state SET string = NULL WHERE name = 'pools_json_sha'`);
 
       await this.updateToSchemaVersion(75);
     }