diff --git a/fin_depo/__init__.py b/fin_depo/__init__.py
index 0cc2d24..01427e6 100644
--- a/fin_depo/__init__.py
+++ b/fin_depo/__init__.py
@@ -55,20 +55,31 @@ __all__ = [
     'static',
 ]
 
+import importlib
 import logging
 
 from . import (
     data,
-    defi_kraken,
-    defi_kucoin,
-    defi_partisia_blockchain,
     static,
 )
 from ._version import __version__
 
 logger = logging.getLogger(__name__)
 
-try:
-    from . import investbank_nordnet
-except ImportError:
-    logger.exception('Could not import %s. Are module requirements installed?', 'fin_depo.investbank_nordnet')
+
+def load_backend(name: str) -> object | None:
+    try:
+        return importlib.import_module(f'{__name__}.{name}')
+    except Exception:
+        logger.exception(
+            'Backend %s could not be imported? Are all module dependencies installed?',
+            name,
+        )
+        return None
+
+# Import modules
+
+defi_kraken = load_backend('defi_kraken')
+defi_kucoin = load_backend('defi_kucoin')
+investbank_nordnet = load_backend('investbank_nordnet')
+defi_partisia_blockchain = load_backend('defi_partisia_blockchain')
diff --git a/fin_depo/defi_kucoin.py b/fin_depo/defi_kucoin.py
index 1e1f915..864917f 100644
--- a/fin_depo/defi_kucoin.py
+++ b/fin_depo/defi_kucoin.py
@@ -139,7 +139,10 @@ class KucoinDepoFetcher(DepoFetcher):
         return self._get_order_details(response['orderId'], input_asset, output_asset)
 
     def _get_order_details(
-        self, order_id: str, input_asset: fin_defs.Asset, output_asset: fin_defs.Asset,
+        self,
+        order_id: str,
+        input_asset: fin_defs.Asset,
+        output_asset: fin_defs.Asset,
     ) -> TradeOrderDetails:
         """Determine the order details for the order with the given id.
 
@@ -164,14 +167,19 @@ class KucoinDepoFetcher(DepoFetcher):
             fee_asset=fin_defs.WELL_KNOWN_SYMBOLS[order_details['feeCurrency']],
             fee_amount=Decimal(order_details['fee']),
             executed_time=datetime.datetime.fromtimestamp(
-                order_details['createdAt'] / 1000, tz=datetime.UTC,
+                order_details['createdAt'] / 1000,
+                tz=datetime.UTC,
             ),
             order_id=order_id,
             raw_order_details=order_details,
         )
 
     def _get_order_with_retries(
-        self, order_id: str, *, num_retries: int, sleep_between_tries: float = 1.0,
+        self,
+        order_id: str,
+        *,
+        num_retries: int,
+        sleep_between_tries: float = 1.0,
     ) -> dict:
         """Get the order details from KuCoin backend.
 
diff --git a/fin_depo/investbank_nordnet.py b/fin_depo/investbank_nordnet.py
index 52b4c13..222519f 100644
--- a/fin_depo/investbank_nordnet.py
+++ b/fin_depo/investbank_nordnet.py
@@ -30,7 +30,11 @@ def asset_from_instrument(instrument: Instrument) -> fin_defs.Asset | None:
         return None
     symbol = instrument.symbol
     exchange_id = instrument.tradables[0].mic
-    return fin_defs.Stock(symbol, fin_defs.EXCHANGES_BY_IDS[exchange_id], nordnet_id = instrument.instrument_id)
+    return fin_defs.Stock(
+        symbol,
+        fin_defs.EXCHANGES_BY_IDS[exchange_id],
+        nordnet_id=instrument.instrument_id,
+    )
 
 
 EMPTY_DICT: Mapping[str, str | int] = frozendict()
diff --git a/test/test_static.py b/test/test_static.py
index 8fc0f0c..06abdef 100644
--- a/test/test_static.py
+++ b/test/test_static.py
@@ -7,7 +7,8 @@ import fin_depo
 
 def test_get_depo():
     fetcher = fin_depo.static.StaticDepoFetcher(
-        'Test', {fin_defs.BTC: Decimal(1000), fin_defs.USD: Decimal(2000)},
+        'Test',
+        {fin_defs.BTC: Decimal(1000), fin_defs.USD: Decimal(2000)},
     )
 
     depo = fetcher.get_depo()