diff --git a/backend/src/api/blocks.ts b/backend/src/api/blocks.ts
index d950a9bd3..9c1c1d05b 100644
--- a/backend/src/api/blocks.ts
+++ b/backend/src/api/blocks.ts
@@ -783,10 +783,18 @@ class Blocks {
     const blocks: any[] = [];
 
     while (fromHeight <= toHeight) {
-      let block = await blocksRepository.$getBlockByHeight(fromHeight);
+      let block: any = await blocksRepository.$getBlockByHeight(fromHeight);
       if (!block) {
         block = await this.$indexBlock(fromHeight);
       }
+
+      delete(block.hash);
+      delete(block.previous_block_hash);
+      delete(block.pool_name);
+      delete(block.pool_link);
+      delete(block.pool_addresses);
+      delete(block.pool_regexes);
+
       blocks.push(block);
       fromHeight++;
     }
diff --git a/backend/src/repositories/BlocksRepository.ts b/backend/src/repositories/BlocksRepository.ts
index baaea38d9..cc6fdeb08 100644
--- a/backend/src/repositories/BlocksRepository.ts
+++ b/backend/src/repositories/BlocksRepository.ts
@@ -384,6 +384,7 @@ class BlocksRepository {
       }
 
       rows[0].fee_span = JSON.parse(rows[0].fee_span);
+      rows[0].fee_percentiles = JSON.parse(rows[0].fee_percentiles);
       return rows[0];
     } catch (e) {
       logger.err(`Cannot get indexed block ${height}. Reason: ` + (e instanceof Error ? e.message : e));