diff --git a/src/bond_alerts/main.py b/src/bond_alerts/main.py
index 9c2306f..9a49d96 100644
--- a/src/bond_alerts/main.py
+++ b/src/bond_alerts/main.py
@@ -39,7 +39,7 @@
 def base_token_price(lp_address, known_address, known_price):
     # Retrieve token price by using the LP token
     try:
-        address = Web3.toChecksumAddress(lp_address)
+        address = Web3.to_checksum_address(lp_address)
         abi = json.loads('[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint112","name":"reserve0","type":"uint112"},{"indexed":false,"internalType":"uint112","name":"reserve1","type":"uint112"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINIMUM_LIQUIDITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint112","name":"_reserve0","type":"uint112"},{"internalType":"uint112","name":"_reserve1","type":"uint112"},{"internalType":"uint32","name":"_blockTimestampLast","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token0","type":"address"},{"internalType":"address","name":"_token1","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"liquidity","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"sync","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]')  # noqa: E501
         LP_contract = web3.eth.contract(address=address, abi=abi)
         reserves = LP_contract.functions.getReserves().call()
@@ -51,7 +51,7 @@ def base_token_price(lp_address, known_address, known_price):
         decimals0 = token0.functions.decimals().call()
         decimals1 = token1.functions.decimals().call()
 
-        if Web3.toChecksumAddress(known_address) == address0:
+        if Web3.to_checksum_address(known_address) == address0:
             tokenPrice = known_price * \
                 reserves[0] * 10**decimals1 / (reserves[1] * 10**decimals0)
         else:
@@ -68,7 +68,7 @@ def base_token_price(lp_address, known_address, known_price):
 def lp_price(lp_address):
     # Retrieve price of the LP token
     try:
-        LP_address = Web3.toChecksumAddress(lp_address)
+        LP_address = Web3.to_checksum_address(lp_address)
         LP_abi = json.loads('[{"inputs":[],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Burn","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1","type":"uint256"}],"name":"Mint","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"sender","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount0In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1In","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount0Out","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amount1Out","type":"uint256"},{"indexed":true,"internalType":"address","name":"to","type":"address"}],"name":"Swap","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint112","name":"reserve0","type":"uint112"},{"indexed":false,"internalType":"uint112","name":"reserve1","type":"uint112"}],"name":"Sync","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"inputs":[],"name":"DOMAIN_SEPARATOR","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"MINIMUM_LIQUIDITY","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"PERMIT_TYPEHASH","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"burn","outputs":[{"internalType":"uint256","name":"amount0","type":"uint256"},{"internalType":"uint256","name":"amount1","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getReserves","outputs":[{"internalType":"uint112","name":"_reserve0","type":"uint112"},{"internalType":"uint112","name":"_reserve1","type":"uint112"},{"internalType":"uint32","name":"_blockTimestampLast","type":"uint32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token0","type":"address"},{"internalType":"address","name":"_token1","type":"address"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"kLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"mint","outputs":[{"internalType":"uint256","name":"liquidity","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"nonces","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"owner","type":"address"},{"internalType":"address","name":"spender","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"},{"internalType":"uint256","name":"deadline","type":"uint256"},{"internalType":"uint8","name":"v","type":"uint8"},{"internalType":"bytes32","name":"r","type":"bytes32"},{"internalType":"bytes32","name":"s","type":"bytes32"}],"name":"permit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"price0CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"price1CumulativeLast","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"}],"name":"skim","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount0Out","type":"uint256"},{"internalType":"uint256","name":"amount1Out","type":"uint256"},{"internalType":"address","name":"to","type":"address"},{"internalType":"bytes","name":"data","type":"bytes"}],"name":"swap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"sync","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"from","type":"address"},{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"value","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"nonpayable","type":"function"}]')  # noqa: E501
         LP_contract = web3.eth.contract(address=LP_address, abi=LP_abi)
 
@@ -193,8 +193,8 @@ def get_prices():
         # Update bond info
         for b in bond_list:
             address, quote_token = fetch_bond_md(bond_db, b)
-            is_closed = max_debt_reached(bond_address=Web3.toChecksumAddress(address))
-            price, disc, bond_max = contract_info(bond_address=Web3.toChecksumAddress(address), payoutTokenPrice=token_info[quote_token], maxReached=is_closed)  # noqa: E501
+            is_closed = max_debt_reached(bond_address=Web3.to_checksum_address(address))
+            price, disc, bond_max = contract_info(bond_address=Web3.to_checksum_address(address), payoutTokenPrice=token_info[quote_token], maxReached=is_closed)  # noqa: E501
             update_bond_info(bond_db, update_bond=b, update_price=price, update_disc=float(disc), update_capacity=bond_max, update_debt=is_closed)  # noqa: E501
             print(b, price, quote_token, token_info[quote_token], f'{disc:,.2f}')
 
diff --git a/src/constants.py b/src/constants.py
index 781ba37..cd4919a 100755
--- a/src/constants.py
+++ b/src/constants.py
@@ -13,32 +13,32 @@
 USDC_DECIMALS = 12
 
 # Token Addresses
-BCT_ADDRESS = Web3.toChecksumAddress('0x2f800db0fdb5223b3c3f354886d907a671414a7f')
-C3_ADDRESS = Web3.toChecksumAddress('0xad01DFfe604CDc172D8237566eE3a3ab6524d4C6')
-FRAX_ADDRESS = Web3.toChecksumAddress('0x45c32fA6DF82ead1e2EF74d17b76547EDdFaFF89')
-KLIMA_ADDRESS = Web3.toChecksumAddress('0x4e78011Ce80ee02d2c3e649Fb657E45898257815')
-MCO2_ADDRESS = Web3.toChecksumAddress('0xfc98e825a2264d890f9a1e68ed50e1526abccacd')
-MOSS_ADDRESS = Web3.toChecksumAddress('0x03e3369af9390493cb7cc599cd5233d50e674da4')
-NBO_ADDRESS = Web3.toChecksumAddress('0x6BCa3B77C1909Ce1a4Ba1A20d1103bDe8d222E48')
-NCT_ADDRESS = Web3.toChecksumAddress('0xD838290e877E0188a4A44700463419ED96c16107')
-UBO_ADDRESS = Web3.toChecksumAddress('0x2B3eCb0991AF0498ECE9135bcD04013d7993110c')
-USDC_ADDRESS = Web3.toChecksumAddress('0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174')
+BCT_ADDRESS = Web3.to_checksum_address('0x2f800db0fdb5223b3c3f354886d907a671414a7f')
+C3_ADDRESS = Web3.to_checksum_address('0xad01DFfe604CDc172D8237566eE3a3ab6524d4C6')
+FRAX_ADDRESS = Web3.to_checksum_address('0x45c32fA6DF82ead1e2EF74d17b76547EDdFaFF89')
+KLIMA_ADDRESS = Web3.to_checksum_address('0x4e78011Ce80ee02d2c3e649Fb657E45898257815')
+MCO2_ADDRESS = Web3.to_checksum_address('0xfc98e825a2264d890f9a1e68ed50e1526abccacd')
+MOSS_ADDRESS = Web3.to_checksum_address('0x03e3369af9390493cb7cc599cd5233d50e674da4')
+NBO_ADDRESS = Web3.to_checksum_address('0x6BCa3B77C1909Ce1a4Ba1A20d1103bDe8d222E48')
+NCT_ADDRESS = Web3.to_checksum_address('0xD838290e877E0188a4A44700463419ED96c16107')
+UBO_ADDRESS = Web3.to_checksum_address('0x2B3eCb0991AF0498ECE9135bcD04013d7993110c')
+USDC_ADDRESS = Web3.to_checksum_address('0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174')
 
 # LP Pool Addresses
-BCT_KLIMA_POOL = Web3.toChecksumAddress('0x9803c7ae526049210a1725f7487af26fe2c24614')
-FRAX_C3_POOL = Web3.toChecksumAddress('0xb5600746f947c25c0cbc36429f87e6c88f9d6a88')
-KLIMA_MCO2_POOL = Web3.toChecksumAddress('0x64a3b8ca5a7e406a78e660ae10c7563d9153a739')
-KLIMA_NBO_POOL = Web3.toChecksumAddress('0x251cA6A70cbd93Ccd7039B6b708D4cb9683c266C')
-KLIMA_USDC_POOL = Web3.toChecksumAddress('0x5786b267d35F9D011c4750e0B0bA584E1fDbeAD1')
-MOSS_USDC_POOL = Web3.toChecksumAddress('0x75a7360e330c338007CF482e2CDf0A06573763A1')
-UBO_KLIMA_POOL = Web3.toChecksumAddress('0x5400A05B8B45EaF9105315B4F2e31F806AB706dE')
-USDC_NCT_POOL = Web3.toChecksumAddress('0xdb995f975f1bfc3b2157495c47e4efb31196b2ca')
+BCT_KLIMA_POOL = Web3.to_checksum_address('0x9803c7ae526049210a1725f7487af26fe2c24614')
+FRAX_C3_POOL = Web3.to_checksum_address('0xb5600746f947c25c0cbc36429f87e6c88f9d6a88')
+KLIMA_MCO2_POOL = Web3.to_checksum_address('0x64a3b8ca5a7e406a78e660ae10c7563d9153a739')
+KLIMA_NBO_POOL = Web3.to_checksum_address('0x251cA6A70cbd93Ccd7039B6b708D4cb9683c266C')
+KLIMA_USDC_POOL = Web3.to_checksum_address('0x5786b267d35F9D011c4750e0B0bA584E1fDbeAD1')
+MOSS_USDC_POOL = Web3.to_checksum_address('0x75a7360e330c338007CF482e2CDf0A06573763A1')
+UBO_KLIMA_POOL = Web3.to_checksum_address('0x5400A05B8B45EaF9105315B4F2e31F806AB706dE')
+USDC_NCT_POOL = Web3.to_checksum_address('0xdb995f975f1bfc3b2157495c47e4efb31196b2ca')
 
 # Klima Protocol Contracts
-STAKING_ADDRESS = Web3.toChecksumAddress('0x25d28a24Ceb6F81015bB0b2007D795ACAc411b4d')
-DISTRIBUTOR_ADDRESS = Web3.toChecksumAddress('0x4cC7584C3f8FAABf734374ef129dF17c3517e9cB')
-SKLIMA_ADDRESS = Web3.toChecksumAddress('0xb0C22d8D350C67420f06F48936654f567C73E8C8')
-DAO_WALLET_ADDRESS = Web3.toChecksumAddress('0x65a5076c0ba74e5f3e069995dc3dab9d197d995c')
+STAKING_ADDRESS = Web3.to_checksum_address('0x25d28a24Ceb6F81015bB0b2007D795ACAc411b4d')
+DISTRIBUTOR_ADDRESS = Web3.to_checksum_address('0x4cC7584C3f8FAABf734374ef129dF17c3517e9cB')
+SKLIMA_ADDRESS = Web3.to_checksum_address('0xb0C22d8D350C67420f06F48936654f567C73E8C8')
+DAO_WALLET_ADDRESS = Web3.to_checksum_address('0x65a5076c0ba74e5f3e069995dc3dab9d197d995c')
 
 # Subgraphs
 KLIMA_PROTOCOL_SUBGRAPH = 'https://api.thegraph.com/subgraphs/name/klimadao/klimadao-protocol-metrics'
diff --git a/src/guerilla_marketing/guerilla_utils.py b/src/guerilla_marketing/guerilla_utils.py
index c016146..1ae763a 100644
--- a/src/guerilla_marketing/guerilla_utils.py
+++ b/src/guerilla_marketing/guerilla_utils.py
@@ -96,7 +96,7 @@ def validate_address(address):
     if not w3.isAddress(address):
         return False
 
-    aklima_contract = w3.eth.contract(w3.toChecksumAddress(AKLIMA_CONTRACT_ADDR), abi=ERC20_ABI)
+    aklima_contract = w3.eth.contract(w3.to_checksum_address(AKLIMA_CONTRACT_ADDR), abi=ERC20_ABI)
     akl_balance = aklima_contract.functions.balanceOf(address).call()
 
     if akl_balance > 0:
diff --git a/src/utils.py b/src/utils.py
index 89a6edd..8626de8 100755
--- a/src/utils.py
+++ b/src/utils.py
@@ -14,7 +14,7 @@
 def get_polygon_web3():
     web3 = Web3(Web3.HTTPProvider(PROVIDER_POLYGON_URL))
 
-    assert web3.isConnected()
+    assert web3.is_connected()
 
     return web3
 
@@ -22,7 +22,7 @@ def get_polygon_web3():
 def get_eth_web3():
     web3_eth = Web3(Web3.HTTPProvider(PROVIDER_ETH_URL))
 
-    assert web3_eth.isConnected()
+    assert web3_eth.is_connected()
 
     return web3_eth