diff --git a/pyproject.toml b/pyproject.toml
index a85fab2..9f90704 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -50,7 +50,7 @@ max_complexity = 10
 format = "grouped"
 
 [tool.flakeheaven.plugins]
-"flake8-*" = [
+"*" = [
     "+*",
     # long lines
     "-E501",
diff --git a/src/common/tests.py b/src/common/tests.py
index 7ce503c..a39b155 100644
--- a/src/common/tests.py
+++ b/src/common/tests.py
@@ -1,3 +1 @@
-from django.test import TestCase
-
 # Create your tests here.
diff --git a/src/purchase/tests.py b/src/purchase/tests.py
index 7ce503c..a39b155 100644
--- a/src/purchase/tests.py
+++ b/src/purchase/tests.py
@@ -1,3 +1 @@
-from django.test import TestCase
-
 # Create your tests here.
diff --git a/src/purchase/views/reports.py b/src/purchase/views/reports.py
index 1b080da..f3b0795 100644
--- a/src/purchase/views/reports.py
+++ b/src/purchase/views/reports.py
@@ -9,7 +9,6 @@ from matplotlib import ticker
 
 from purchase.models import (
     Basket,
-    BasketQuerySet,
     PaymentMethod,
     Product,
     ProductQuerySet,