diff --git a/operate/cli.py b/operate/cli.py
index 90e5888dc..501b8c5bf 100644
--- a/operate/cli.py
+++ b/operate/cli.py
@@ -25,10 +25,6 @@
 
 from aea_ledger_ethereum.ethereum import EthereumCrypto
 from clea import group, params, run
-from operate.constants import KEY, KEYS, OPERATE, SERVICES
-from operate.http import Resource
-from operate.keys import Keys
-from operate.services.manage import Services
 from starlette.applications import Starlette
 from starlette.middleware import Middleware
 from starlette.middleware.cors import CORSMiddleware
@@ -36,6 +32,11 @@
 from typing_extensions import Annotated
 from uvicorn.main import run as uvicorn
 
+from operate.constants import KEY, KEYS, OPERATE, SERVICES
+from operate.http import Resource
+from operate.keys import Keys
+from operate.services.manage import Services
+
 DEFAULT_HARDHAT_KEY = (
     "0xac0974bec39a17e36ba4a6b4d238ff944bacb478cbed5efcae784d7bf4f2ff80"
 ).encode()
diff --git a/operate/data/contracts/uniswap_v2_erc20/contract.py b/operate/data/contracts/uniswap_v2_erc20/contract.py
index 76a10d8f0..06d9c03c3 100644
--- a/operate/data/contracts/uniswap_v2_erc20/contract.py
+++ b/operate/data/contracts/uniswap_v2_erc20/contract.py
@@ -26,7 +26,6 @@
 from aea.contracts.base import Contract
 from aea_ledger_ethereum import EthereumApi
 
-
 PUBLIC_ID = PublicId.from_str("valory/uniswap_v2_erc20:0.1.0")
 
 _logger = logging.getLogger(
diff --git a/operate/http/__init__.py b/operate/http/__init__.py
index b4cda4ca4..85de2dc77 100644
--- a/operate/http/__init__.py
+++ b/operate/http/__init__.py
@@ -23,11 +23,12 @@
 import typing as t
 from abc import ABC
 
-from operate.http.exceptions import NotAllowed, ResourceException
 from starlette.requests import Request
 from starlette.responses import JSONResponse
 from starlette.types import Receive, Scope, Send
 
+from operate.http.exceptions import NotAllowed, ResourceException
+
 GenericResource = t.TypeVar("GenericResource")
 PostPayload = t.TypeVar("PostPayload")
 PostResponse = t.TypeVar("PostResponse")
diff --git a/operate/keys.py b/operate/keys.py
index 035a4e5e3..0d2711caa 100644
--- a/operate/keys.py
+++ b/operate/keys.py
@@ -24,6 +24,7 @@
 from pathlib import Path
 
 from aea_ledger_ethereum.ethereum import EthereumCrypto
+
 from operate.types import KeyType
 
 
diff --git a/operate/ledger/ethereum.py b/operate/ledger/ethereum.py
index 8d9d4ad77..be88f061c 100644
--- a/operate/ledger/ethereum.py
+++ b/operate/ledger/ethereum.py
@@ -22,6 +22,7 @@
 import typing as t
 
 from aea_ledger_ethereum import EthereumApi, EthereumCrypto
+
 from operate.ledger.base import LedgerHelper
 from operate.types import LedgerType
 
diff --git a/scripts/fund.py b/scripts/fund.py
index 136e7112f..293488c84 100644
--- a/scripts/fund.py
+++ b/scripts/fund.py
@@ -1,10 +1,11 @@
 """Fund an address on gnosis fork."""
 
-import sys
+import json
 import os
-from aea_ledger_ethereum.ethereum import EthereumApi, EthereumCrypto
+import sys
 from pathlib import Path
-import json
+
+from aea_ledger_ethereum.ethereum import EthereumApi, EthereumCrypto
 from dotenv import load_dotenv
 
 OLAS_CONTRACT_ADDRESS_GNOSIS = "0xcE11e14225575945b8E6Dc0D4F2dD4C570f79d9f"
@@ -31,23 +32,37 @@
 if staking_keys_path:
     staking_crypto = EthereumCrypto(staking_keys_path)
 
-    with open(Path("operate", "data", "contracts", "uniswap_v2_erc20", "build", "IUniswapV2ERC20.json"), "r") as abi_file:
+    with open(
+        Path(
+            "operate",
+            "data",
+            "contracts",
+            "uniswap_v2_erc20",
+            "build",
+            "IUniswapV2ERC20.json",
+        ),
+        "r",
+    ) as abi_file:
         abi = json.load(abi_file)["abi"]
 
     olas_contract = ledger_api.api.eth.contract(
         address=ledger_api.api.to_checksum_address(OLAS_CONTRACT_ADDRESS_GNOSIS),
-        abi=abi
+        abi=abi,
     )
 
-    tx = olas_contract.functions.transfer(address, int(2e18)).build_transaction({
-        "chainId": 100,
-        "gas": 100000,
-        "gasPrice": ledger_api.api.to_wei("50", "gwei"),
-        "nonce": ledger_api.api.eth.get_transaction_count(staking_crypto.address),
-    })
+    tx = olas_contract.functions.transfer(address, int(2e18)).build_transaction(
+        {
+            "chainId": 100,
+            "gas": 100000,
+            "gasPrice": ledger_api.api.to_wei("50", "gwei"),
+            "nonce": ledger_api.api.eth.get_transaction_count(staking_crypto.address),
+        }
+    )
 
-    signed_txn = ledger_api.api.eth.account.sign_transaction(tx, staking_crypto.private_key)
+    signed_txn = ledger_api.api.eth.account.sign_transaction(
+        tx, staking_crypto.private_key
+    )
     tx_hash = ledger_api.api.eth.send_raw_transaction(signed_txn.rawTransaction)
 
     balance = olas_contract.functions.balanceOf(address).call()
-    print(f"Balance of {address} = {balance/1e18} OLAS")
\ No newline at end of file
+    print(f"Balance of {address} = {balance/1e18} OLAS")