diff --git a/Block.py b/Block.py
index 66e7c909..9c79c6c7 100644
--- a/Block.py
+++ b/Block.py
@@ -66,6 +66,7 @@ def get_mined_tx_data(cls, tx_files):
         fee_collected = 0
         tx_included= []
 
+        # we should also account for weight of coinbase tx
         for tx in tx_files:
             if (BLOCK_SIZE_FOR_TX -weight_stored)> tx["weights"]:
                   tx_count+= 1
@@ -112,8 +113,6 @@ def create_block(cls, tx_files):
       
       # get the data related to tx mined in our block
       (tx_count,tx_included,fees_collected,weight_stored)=Block.get_mined_tx_data(tx_files)
-
-      
       #-------------------------------------------------------------------------------------------
       
       # create coinbase tx and get serliased form     
@@ -207,5 +206,3 @@ def get_valid_nonce(self,target):
                 print("shit-man")
                 break
         return self    
-             
-
diff --git a/Helper.py b/Helper.py
index c6d76a50..a9a72f06 100755
--- a/Helper.py
+++ b/Helper.py
@@ -3,7 +3,7 @@
 
 
 import json,hashlib,os
-from RIPEMD160 import ripemd160
+from Crypto.Hash import RIPEMD160
 
 
 ## This function will return  all the the transactions
@@ -168,11 +168,6 @@ def merkle_root(hashes):
 
 
 def HASH160(s):
-    return ripemd160(s)
+    hash_object = RIPEMD160.new(data=s)
+    return hash_object.digest()
 
-
-
-
-    
-   
-  
diff --git a/__pycache__/Block.cpython-311.pyc b/__pycache__/Block.cpython-311.pyc
index bf4190ba..6fb11dc0 100644
Binary files a/__pycache__/Block.cpython-311.pyc and b/__pycache__/Block.cpython-311.pyc differ
diff --git a/__pycache__/Helper.cpython-311.pyc b/__pycache__/Helper.cpython-311.pyc
index 6b720549..be826db9 100644
Binary files a/__pycache__/Helper.cpython-311.pyc and b/__pycache__/Helper.cpython-311.pyc differ
diff --git a/output.txt b/output.txt
index 96cb11db..ce83740a 100644
--- a/output.txt
+++ b/output.txt
@@ -1,4 +1,4 @@
-0060e92f3f18ee206e1350f1cabe4ff319851d4c3c64b8d2d90e03000000000000000000664d84331a42280c640a257b7e2223c2774445a448668a242a075add51187f57cf282d66ffff001f9c2d0100
+0060e92f3f18ee206e1350f1cabe4ff319851d4c3c64b8d2d90e03000000000000000000664d84331a42280c640a257b7e2223c2774445a448668a242a075add51187f57252f2f66ffff001fc8060000
 010000000001010000000000000000000000000000000000000000000000000000000000000000ffffffff11030cd3bf0c004f4345414e2e58595a002effffffff02e412bf13000000001976a9142c30a6aaac6d96687291475d7d52f4b469f665a688ac0000000000000000266a24aa21a9ed68d3d720d695be2c9d1e2f33c3d9d1042bdec1ce26b563afdc471db6a02a12520120000000000000000000000000000000000000000000000000000000000000000000000000
 96cb0dce25d42069df3ad24623a1d0c303e32b30412821f25cb7f6619d2e66c5
 dcd522b3588c7adb0418454539e1a929fff936f211e5a20383fdcbc3ad8751b9
diff --git a/requirements.txt b/requirements.txt
new file mode 100644
index 00000000..08e3598e
--- /dev/null
+++ b/requirements.txt
@@ -0,0 +1 @@
+pycryptodome==3.20.0
diff --git a/run.sh b/run.sh
index 4aeb060e..d3f899f4 100755
--- a/run.sh
+++ b/run.sh
@@ -1,6 +1,8 @@
 # Update this file to run your own code
 #!/bin/bash
 
-# Run main.py and redirect output to Output.txt
+# install required dependencies from requirements.txt
+pip install -r requirements.txt
 
+# Run main.py and redirect output to Output.txt
 python main.py > output.txt