diff --git a/.flake8 b/.flake8
index 532b94f00..6c11afadb 100644
--- a/.flake8
+++ b/.flake8
@@ -1,5 +1,5 @@
 [flake8]
-max-line-length = 300
+max-line-length = 150
 exclude = lnbits/wallets/lnd_grpc_files/, lnbits/extensions/
 ignore =
     # E402: module level import not at top of file
diff --git a/lnbits/app.py b/lnbits/app.py
index 03dff297f..f8bfd4480 100644
--- a/lnbits/app.py
+++ b/lnbits/app.py
@@ -428,7 +428,10 @@ class Formatter:
         self.padding = 0
         self.minimal_fmt: str = "<green>{time:YYYY-MM-DD HH:mm:ss.SS}</green> | <level>{level}</level> | <level>{message}</level>\n"
         if settings.debug:
-            self.fmt: str = "<green>{time:YYYY-MM-DD HH:mm:ss.SS}</green> | <level>{level: <4}</level> | <cyan>{name}</cyan>:<cyan>{function}</cyan>:<cyan>{line}</cyan> | <level>{message}</level>\n"
+            self.fmt: str = (
+                "<green>{time:YYYY-MM-DD HH:mm:ss.SS}</green> | <level>{level: <4}</level> | "
+                "<cyan>{name}</cyan>:<cyan>{function}</cyan>:<cyan>{line}</cyan> | <level>{message}</level>\n"
+            )
         else:
             self.fmt: str = self.minimal_fmt
 
diff --git a/lnbits/core/migrations.py b/lnbits/core/migrations.py
index 4e84ef85e..b66fa6969 100644
--- a/lnbits/core/migrations.py
+++ b/lnbits/core/migrations.py
@@ -168,7 +168,8 @@ async def m004_ensure_fees_are_always_negative(db):
 
 async def m005_balance_check_balance_notify(db):
     """
-    Keep track of balanceCheck-enabled lnurl-withdrawals to be consumed by an LNbits wallet and of balanceNotify URLs supplied by users to empty their wallets.
+    Keep track of balanceCheck-enabled lnurl-withdrawals to be consumed by an
+    LNbits wallet and of balanceNotify URLs supplied by users to empty their wallets.
     """
 
     await db.execute(
diff --git a/lnbits/core/services.py b/lnbits/core/services.py
index 9b699571f..49ae4ef5a 100644
--- a/lnbits/core/services.py
+++ b/lnbits/core/services.py
@@ -334,7 +334,8 @@ async def perform_lnurlauth(
 
     def encode_strict_der(r: int, s: int, order: int):
         # if s > order/2 verification will fail sometimes
-        # so we must fix it here (see https://github.com/indutny/elliptic/blob/e71b2d9359c5fe9437fbf46f1f05096de447de57/lib/elliptic/ec/index.js#L146-L147)
+        # so we must fix it here see:
+        # https://github.com/indutny/elliptic/blob/e71b2d9359c5fe9437fbf46f1f05096de447de57/lib/elliptic/ec/index.js#L146-L147
         if s > order // 2:
             s = order - s
 
diff --git a/lnbits/wallets/void.py b/lnbits/wallets/void.py
index b74eb2450..c109ddd00 100644
--- a/lnbits/wallets/void.py
+++ b/lnbits/wallets/void.py
@@ -23,9 +23,10 @@ class VoidWallet(Wallet):
         raise Unsupported("")
 
     async def status(self) -> StatusResponse:
-        logger.warning(
-            "This backend does nothing, it is here just as a placeholder, you must configure an actual backend before being able to do anything useful with LNbits."
-        )
+        logger.warning((
+            "This backend does nothing, it is here just as a placeholder, you must configure an "
+            "actual backend before being able to do anything useful with LNbits."
+        ))
         return StatusResponse(None, 0)
 
     async def pay_invoice(self, bolt11: str, fee_limit_msat: int) -> PaymentResponse: