diff --git a/.flake8 b/.flake8
index bd5f2e22b..f9e0eabd8 100644
--- a/.flake8
+++ b/.flake8
@@ -2,10 +2,6 @@
 max-line-length = 300
 exclude = lnbits/wallets/lnd_grpc_files/, lnbits/extensions/
 ignore =
-    # E203 whitespace before ':'
-    E203,
-    # E221: multiple spaces before operator
-    E221,
     # E402: module level import not at top of file
     E402,
     # E741 ambiguous variable name
diff --git a/lnbits/bolt11.py b/lnbits/bolt11.py
index 84bf61e7a..c62bbe5fb 100644
--- a/lnbits/bolt11.py
+++ b/lnbits/bolt11.py
@@ -50,7 +50,7 @@ def decode(pr: str) -> Invoice:
         raise ValueError("Too short to contain signature")
 
     # extract the signature
-    signature = bitarray[-65 * 8 :].tobytes()
+    signature = bitarray[-65 * 8:].tobytes()
 
     # the tagged fields as a bitstream
     data = bitstring.ConstBitStream(bitarray[: -65 * 8])
@@ -61,7 +61,7 @@ def decode(pr: str) -> Invoice:
     # decode the amount from the hrp
     m = re.search(r"[^\d]+", hrp[2:])
     if m:
-        amountstr = hrp[2 + m.end() :]
+        amountstr = hrp[2 + m.end():]
         if amountstr != "":
             invoice.amount_msat = _unshorten_amount(amountstr)
 
diff --git a/lnbits/core/migrations.py b/lnbits/core/migrations.py
index c19f40afe..4e84ef85e 100644
--- a/lnbits/core/migrations.py
+++ b/lnbits/core/migrations.py
@@ -109,7 +109,7 @@ async def m002_add_fields_to_apipayments(db):
             for ext in ["withdraw", "events", "lnticket", "paywall", "tpos"]:
                 prefix = f"#{ext} "
                 if row["memo"].startswith(prefix):
-                    new = row["memo"][len(prefix) :]
+                    new = row["memo"][len(prefix):]
                     await db.execute(
                         """
                         UPDATE apipayments SET extra = ?, memo = ?
diff --git a/lnbits/middleware.py b/lnbits/middleware.py
index 93a5671c4..815dbc2fa 100644
--- a/lnbits/middleware.py
+++ b/lnbits/middleware.py
@@ -125,7 +125,7 @@ class ExtensionsRedirectMiddleware:
     def _new_path(self, redirect: dict, req_path: str) -> str:
         from_path = redirect["from_path"].split("/")
         redirect_to = redirect["redirect_to_path"].split("/")
-        req_tail_path = req_path.split("/")[len(from_path) :]
+        req_tail_path = req_path.split("/")[len(from_path):]
 
         elements = [
             e for e in ([redirect["ext_id"]] + redirect_to + req_tail_path) if e != ""
diff --git a/lnbits/wallets/lnbits.py b/lnbits/wallets/lnbits.py
index 902711d67..e222b1a1a 100644
--- a/lnbits/wallets/lnbits.py
+++ b/lnbits/wallets/lnbits.py
@@ -164,7 +164,7 @@ class LNbitsWallet(Wallet):
                                 sse_trigger = True
                                 continue
                             elif sse_trigger and line.startswith("data:"):
-                                data = json.loads(line[len("data:") :])
+                                data = json.loads(line[len("data:"):])
                                 sse_trigger = False
                                 yield data["payment_hash"]
                             else:
diff --git a/lnbits/wallets/lntips.py b/lnbits/wallets/lntips.py
index be8159b9c..e6a3275bc 100644
--- a/lnbits/wallets/lntips.py
+++ b/lnbits/wallets/lntips.py
@@ -155,7 +155,7 @@ class LnTipsWallet(Wallet):
                                 prefix = "data: "
                                 if not line.startswith(prefix):
                                     continue
-                                data = line[len(prefix) :]  # sse parsing
+                                data = line[len(prefix):]  # sse parsing
                                 inv = json.loads(data)
                                 if not inv.get("payment_hash"):
                                     continue