diff --git a/freqtrade/optimize/backtesting.py b/freqtrade/optimize/backtesting.py
index 46774e8a5..029946cfb 100644
--- a/freqtrade/optimize/backtesting.py
+++ b/freqtrade/optimize/backtesting.py
@@ -595,7 +595,7 @@ class Backtesting:
             if exit_.exit_type in (ExitType.EXIT_SIGNAL, ExitType.CUSTOM_EXIT):
                 # Checks and adds an exit tag, after checking that the length of the
                 # row has the length for an exit tag column
-                if(
+                if (
                     len(row) > EXIT_TAG_IDX
                     and row[EXIT_TAG_IDX] is not None
                     and len(row[EXIT_TAG_IDX]) > 0
diff --git a/freqtrade/optimize/optimize_reports.py b/freqtrade/optimize/optimize_reports.py
index 44ac4a5b3..519022db2 100644
--- a/freqtrade/optimize/optimize_reports.py
+++ b/freqtrade/optimize/optimize_reports.py
@@ -639,7 +639,7 @@ def text_table_tags(tag_type: str, tag_results: List[Dict[str, Any]], stake_curr
     :param stake_currency: stake-currency - used to correctly name headers
     :return: pretty printed table with tabulate as string
     """
-    if(tag_type == "enter_tag"):
+    if (tag_type == "enter_tag"):
         headers = _get_line_header("TAG", stake_currency)
     else:
         headers = _get_line_header("TAG", stake_currency, 'Sells')
diff --git a/freqtrade/persistence/trade_model.py b/freqtrade/persistence/trade_model.py
index fcb84a59a..19d9361b6 100644
--- a/freqtrade/persistence/trade_model.py
+++ b/freqtrade/persistence/trade_model.py
@@ -1300,7 +1300,7 @@ class Trade(_DECL_BASE, LocalTrade):
         """
 
         filters = [Trade.is_open.is_(False)]
-        if(pair is not None):
+        if (pair is not None):
             filters.append(Trade.pair == pair)
 
         enter_tag_perf = Trade.query.with_entities(
@@ -1333,7 +1333,7 @@ class Trade(_DECL_BASE, LocalTrade):
         """
 
         filters = [Trade.is_open.is_(False)]
-        if(pair is not None):
+        if (pair is not None):
             filters.append(Trade.pair == pair)
 
         sell_tag_perf = Trade.query.with_entities(
@@ -1366,7 +1366,7 @@ class Trade(_DECL_BASE, LocalTrade):
         """
 
         filters = [Trade.is_open.is_(False)]
-        if(pair is not None):
+        if (pair is not None):
             filters.append(Trade.pair == pair)
 
         mix_tag_perf = Trade.query.with_entities(
@@ -1386,7 +1386,7 @@ class Trade(_DECL_BASE, LocalTrade):
             enter_tag = enter_tag if enter_tag is not None else "Other"
             exit_reason = exit_reason if exit_reason is not None else "Other"
 
-            if(exit_reason is not None and enter_tag is not None):
+            if (exit_reason is not None and enter_tag is not None):
                 mix_tag = enter_tag + " " + exit_reason
                 i = 0
                 if not any(item["mix_tag"] == mix_tag for item in return_list):
diff --git a/requirements-dev.txt b/requirements-dev.txt
index 3b98e20db..ee7899eeb 100644
--- a/requirements-dev.txt
+++ b/requirements-dev.txt
@@ -5,7 +5,7 @@
 -r docs/requirements-docs.txt
 
 coveralls==3.3.1
-flake8==4.0.1
+flake8==5.0.1
 flake8-tidy-imports==4.8.0
 mypy==0.971
 pre-commit==2.20.0
diff --git a/tests/edge/test_edge.py b/tests/edge/test_edge.py
index b30d6f998..1b0191fda 100644
--- a/tests/edge/test_edge.py
+++ b/tests/edge/test_edge.py
@@ -136,7 +136,7 @@ def test_adjust(mocker, edge_conf):
     ))
 
     pairs = ['A/B', 'C/D', 'E/F', 'G/H']
-    assert(edge.adjust(pairs) == ['E/F', 'C/D'])
+    assert (edge.adjust(pairs) == ['E/F', 'C/D'])
 
 
 def test_stoploss(mocker, edge_conf):
diff --git a/tests/exchange/test_exchange.py b/tests/exchange/test_exchange.py
index d73e26683..bbe424430 100644
--- a/tests/exchange/test_exchange.py
+++ b/tests/exchange/test_exchange.py
@@ -3810,8 +3810,8 @@ def test__get_funding_fees_from_exchange(default_conf, mocker, exchange_name):
         since=unix_time
     )
 
-    assert(isclose(expected_fees, fees_from_datetime))
-    assert(isclose(expected_fees, fees_from_unix_time))
+    assert (isclose(expected_fees, fees_from_datetime))
+    assert (isclose(expected_fees, fees_from_unix_time))
 
     ccxt_exceptionhandlers(
         mocker,