diff --git a/blockchain_parser/blockchain.py b/blockchain_parser/blockchain.py
index 23e7411..3281b05 100644
--- a/blockchain_parser/blockchain.py
+++ b/blockchain_parser/blockchain.py
@@ -206,7 +206,7 @@ def get_ordered_blocks(self, index, start=0, end=None, cache=None):
         # that have been confirmed
         # (or are new enough that they haven't yet been confirmed)
         blockIndexes = list(filter(lambda block: block.hash not in stale_blocks, blockIndexes))
-
+        blockIndexes.sort(key= lambda b: b.height)
         if end is None:
             end = len(blockIndexes)