diff --git a/modules/cassandra/testcontainers/cassandra/__init__.py b/modules/cassandra/testcontainers/cassandra/__init__.py
index 696a0542..a5dd03b5 100644
--- a/modules/cassandra/testcontainers/cassandra/__init__.py
+++ b/modules/cassandra/testcontainers/cassandra/__init__.py
@@ -20,28 +20,27 @@ class CassandraContainer(DockerContainer):
         ...             "CREATE KEYSPACE keyspace1 WITH replication = "
         ...             "{'class': 'SimpleStrategy', 'replication_factor': '1'};")
     """
-    def __init__(self, image="rinscy/cassandra:latest", ports_to_expose=[9042]):
-        super(CassandraContainer, self).__init__(image)
+
+    def __init__(self, image="rinscy/cassandra:latest", ports_to_expose=(9042,)):
+        super().__init__(image)
         self.ports_to_expose = ports_to_expose
         self.with_exposed_ports(*self.ports_to_expose)
 
     @wait_container_is_ready()
     def _connect(self):
-        wait_for_logs(
-            self,
-            predicate="Starting listening for CQL clients",
-            timeout=MAX_TRIES)
+        wait_for_logs(self, predicate="Starting listening for CQL clients", timeout=MAX_TRIES)
         cluster = self.get_cluster()
         cluster.connect()
 
     def start(self):
-        super(CassandraContainer, self).start()
+        super().start()
         self._connect()
         return self
 
     def get_cluster(self, **kwargs):
         from cassandra.cluster import Cluster
+
         container = self.get_wrapped_container()
         container.reload()
-        hostname = container.attrs['NetworkSettings']['IPAddress']
+        hostname = container.attrs["NetworkSettings"]["IPAddress"]
         return Cluster(contact_points=[hostname], **kwargs)
diff --git a/modules/cassandra/tests/test_cassandra.py b/modules/cassandra/tests/test_cassandra.py
index bf2aca01..812791ba 100644
--- a/modules/cassandra/tests/test_cassandra.py
+++ b/modules/cassandra/tests/test_cassandra.py
@@ -7,9 +7,9 @@ def test_docker_run_cassandra():
         with cluster.connect() as session:
             session.execute(
                 "CREATE KEYSPACE keyspace1 WITH replication = "
-                "{'class': 'SimpleStrategy', 'replication_factor': '1'};")
-            session.execute(
-                "CREATE TABLE keyspace1.table1 (key1 int, key2 int, PRIMARY KEY (key1));")
+                "{'class': 'SimpleStrategy', 'replication_factor': '1'};"
+            )
+            session.execute("CREATE TABLE keyspace1.table1 (key1 int, key2 int, PRIMARY KEY (key1));")
             session.execute("INSERT INTO keyspace1.table1 (key1,key2) values (1,2);")
 
             response = session.execute("SELECT * FROM keyspace1.table1")
diff --git a/modules/scylla/testcontainers/scylla/__init__.py b/modules/scylla/testcontainers/scylla/__init__.py
index f3e9c9cc..ca0f44af 100644
--- a/modules/scylla/testcontainers/scylla/__init__.py
+++ b/modules/scylla/testcontainers/scylla/__init__.py
@@ -20,29 +20,28 @@ class ScyllaContainer(DockerContainer):
         ...            "CREATE KEYSPACE keyspace1 WITH replication "
         ...            "= {'class': 'SimpleStrategy', 'replication_factor': '1'};")
     """
-    def __init__(self, image="scylladb/scylla:latest", ports_to_expose=[9042]):
-        super(ScyllaContainer, self).__init__(image)
+
+    def __init__(self, image="scylladb/scylla:latest", ports_to_expose=(9042,)):
+        super().__init__(image)
         self.ports_to_expose = ports_to_expose
         self.with_exposed_ports(*self.ports_to_expose)
         self.with_command("--skip-wait-for-gossip-to-settle=0")
 
     @wait_container_is_ready()
     def _connect(self):
-        wait_for_logs(
-            self,
-            predicate="Starting listening for CQL clients",
-            timeout=MAX_TRIES)
+        wait_for_logs(self, predicate="Starting listening for CQL clients", timeout=MAX_TRIES)
         cluster = self.get_cluster()
         cluster.connect()
 
     def start(self):
-        super(ScyllaContainer, self).start()
+        super().start()
         self._connect()
         return self
 
     def get_cluster(self, **kwargs):
         from cassandra.cluster import Cluster
+
         container = self.get_wrapped_container()
         container.reload()
-        hostname = container.attrs['NetworkSettings']['IPAddress']
+        hostname = container.attrs["NetworkSettings"]["IPAddress"]
         return Cluster(contact_points=[hostname], **kwargs)
diff --git a/modules/scylla/tests/test_scylla.py b/modules/scylla/tests/test_scylla.py
index a8515e93..3d1ecf44 100644
--- a/modules/scylla/tests/test_scylla.py
+++ b/modules/scylla/tests/test_scylla.py
@@ -7,9 +7,9 @@ def test_docker_run_scylla():
         with cluster.connect() as session:
             session.execute(
                 "CREATE KEYSPACE keyspace1 WITH replication = "
-                "{'class': 'SimpleStrategy', 'replication_factor': '1'};")
-            session.execute(
-                "CREATE TABLE keyspace1.table1 (key1 int, key2 int, PRIMARY KEY (key1));")
+                "{'class': 'SimpleStrategy', 'replication_factor': '1'};"
+            )
+            session.execute("CREATE TABLE keyspace1.table1 (key1 int, key2 int, PRIMARY KEY (key1));")
             session.execute("INSERT INTO keyspace1.table1 (key1,key2) values (1,2);")
 
             response = session.execute("SELECT * FROM keyspace1.table1")