diff --git a/django_migration_linter/migration_linter.py b/django_migration_linter/migration_linter.py
index e5cb644..c49680d 100644
--- a/django_migration_linter/migration_linter.py
+++ b/django_migration_linter/migration_linter.py
@@ -301,9 +301,7 @@ class MigrationLinter:
         return self.nb_erroneous > 0
 
     def get_sql(self, app_label, migration_name):
-        logger.info(
-            f"Calling sqlmigrate command {app_label} {migration_name}"
-        )
+        logger.info(f"Calling sqlmigrate command {app_label} {migration_name}")
         dev_null = open(os.devnull, "w")
         try:
             sql_statement = call_command(
@@ -327,7 +325,7 @@ class MigrationLinter:
         from django.db.migrations.loader import MIGRATIONS_MODULE_NAME
 
         return (
-            re.search(fr"/{MIGRATIONS_MODULE_NAME}/.*\.py", filename)
+            re.search(rf"/{MIGRATIONS_MODULE_NAME}/.*\.py", filename)
             and "__init__" not in filename
         )
 
@@ -537,7 +535,7 @@ class MigrationLinter:
             model = model.split(".", 1)[0]
             has_get_model_call = (
                 re.search(
-                    fr"{model}.*= +\w+\.get_model\(",
+                    rf"{model}.*= +\w+\.get_model\(",
                     source_code,
                 )
                 is not None
diff --git a/django_migration_linter/sql_analyser/base.py b/django_migration_linter/sql_analyser/base.py
index e056492..b27c2d8 100644
--- a/django_migration_linter/sql_analyser/base.py
+++ b/django_migration_linter/sql_analyser/base.py
@@ -36,8 +36,7 @@ def has_add_unique(sql_statements, **kwargs):
 
     concerned_table = regex_result.group(1)
     table_is_added_in_transaction = any(
-        sql.startswith(f"CREATE TABLE {concerned_table}")
-        for sql in sql_statements
+        sql.startswith(f"CREATE TABLE {concerned_table}") for sql in sql_statements
     )
     return not table_is_added_in_transaction
 
diff --git a/django_migration_linter/sql_analyser/postgresql.py b/django_migration_linter/sql_analyser/postgresql.py
index a9416a8..36173b9 100644
--- a/django_migration_linter/sql_analyser/postgresql.py
+++ b/django_migration_linter/sql_analyser/postgresql.py
@@ -16,8 +16,7 @@ def has_create_index(sql_statements, **kwargs):
 
     concerned_table = regex_result.group(2)
     table_is_added_in_transaction = any(
-        sql.startswith(f"CREATE TABLE {concerned_table}")
-        for sql in sql_statements
+        sql.startswith(f"CREATE TABLE {concerned_table}") for sql in sql_statements
     )
     return not table_is_added_in_transaction
 
diff --git a/tests/unit/test_sql_analyser.py b/tests/unit/test_sql_analyser.py
index 8b4d504..e673441 100644
--- a/tests/unit/test_sql_analyser.py
+++ b/tests/unit/test_sql_analyser.py
@@ -21,9 +21,7 @@ class SqlAnalyserTestCase(unittest.TestCase):
         errors, _, warnings = self.analyse_sql(sql)
         self.assertEqual(0, len(errors), f"Found errors in sql: {errors}")
         if not allow_warnings:
-            self.assertEqual(
-                0, len(warnings), f"Found warnings in sql: {errors}"
-            )
+            self.assertEqual(0, len(warnings), f"Found warnings in sql: {errors}")
 
     def assertBackwardIncompatibleSql(self, sql, code=None):
         errors, _, _ = self.analyse_sql(sql)