diff --git a/__pycache__/block.cpython-312.pyc b/__pycache__/block.cpython-312.pyc
index 101b708..059f00e 100644
Binary files a/__pycache__/block.cpython-312.pyc and b/__pycache__/block.cpython-312.pyc differ
diff --git a/block.py b/block.py
index 87e9aa7..007a3b8 100644
--- a/block.py
+++ b/block.py
@@ -14,7 +14,7 @@ def __init__(self, version, prev_block, merkle_root,
     def serialize(self):
         result = int_to_little_endian(self.version, 4)
         result += self.prev_block[::-1]
-        result += self.merkle_root
+        result += self.merkle_root[::-1]
         result += int_to_little_endian(self.timestamp, 4)
         result += self.bits[::-1]
         result += self.nonce[::-1]
@@ -34,6 +34,6 @@ def validate_merkle_root(self):
         
         hashes = [h[::-1] for h in self.tx_hashes]
         # compute the Merkle Root and reverse
-        root = merkle_root(hashes)
+        root = merkle_root(hashes)[::-1]
         # return whether self.merkle_root is the same
         return root == self.merkle_root
\ No newline at end of file
diff --git a/main.py b/main.py
index 3d77f22..d8b24d6 100644
--- a/main.py
+++ b/main.py
@@ -162,7 +162,7 @@ def hash2561(data):
 block = Block (
   version = 0x20000002 ,
   prev_block= bytes.fromhex(base_block),
-  merkle_root= merkle_root(txides),
+  merkle_root= merkle_root(txides)[::-1],
   timestamp= int(ts),
   bits=bytes.fromhex('1f00ffff') ,
   nonce= bytes.fromhex(nonce())  , #nonce()) , #nonce should be of the bytes 
diff --git a/output.txt b/output.txt
index 6b7cf56..50a8f19 100644
--- a/output.txt
+++ b/output.txt
@@ -1,4 +1,4 @@
-020000200000000000000000000000000000000000000000000000000000000000000000e016e1851957a9a69e138c34bf5c67fdf83581514903d012886f1c3d9d0c54aacfa12f66ffff001f09deb1c9
+020000200000000000000000000000000000000000000000000000000000000000000000e016e1851957a9a69e138c34bf5c67fdf83581514903d012886f1c3d9d0c54aa60a22f66ffff001f06f16696
 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
 FD0600
 49a6af777488f947e2b6e2e0ab87f56f44cbfe8280c4dfd9c7c5d9c1b1291f10