diff --git a/lib/core/settings.py b/lib/core/settings.py
index 40b5fbec3..f5b2b7ed1 100644
--- a/lib/core/settings.py
+++ b/lib/core/settings.py
@@ -20,7 +20,7 @@ from lib.core.enums import OS
 from thirdparty import six
 
 # sqlmap version (<major>.<minor>.<month>.<monthly commit>)
-VERSION = "1.10.9.27"
+VERSION = "1.10.9.28"
 TYPE = "dev" if VERSION.count('.') > 2 and VERSION.split('.')[-1] != '0' else "stable"
 TYPE_COLORS = {"dev": 33, "stable": 90, "pip": 34}
 VERSION_STRING = "sqlmap/%s#%s" % ('.'.join(VERSION.split('.')[:-1]) if VERSION.count('.') > 2 and VERSION.split('.')[-1] == '0' else VERSION, TYPE)
diff --git a/tests/test_dns_server.py b/tests/test_dns_server.py
index dc2bf5ce1..7624e4638 100644
--- a/tests/test_dns_server.py
+++ b/tests/test_dns_server.py
@@ -381,7 +381,7 @@ class TestInteractshDNSServer(unittest.TestCase):
             # draining its pending storage in a single /poll response
             if names_batch:
                 batch = [{"protocol": "dns", "full-id": n, "unique-id": n} for n in names_batch]
-                names_batch.clear()
+                del names_batch[:]
                 return batch
             return []
         client.poll = poll
@@ -449,7 +449,7 @@ class TestInteractshDNSServer(unittest.TestCase):
             # draining its pending storage in a single /poll response
             if rec_batch:
                 batch = rec_batch[:]
-                rec_batch.clear()
+                del rec_batch[:]
                 return batch
             return []
         client.poll = poll
@@ -753,7 +753,7 @@ class TestInteractshHTTPRequests(unittest.TestCase):
             # draining its pending storage in a single /poll response
             if rec_batch:
                 batch = rec_batch[:]
-                rec_batch.clear()
+                del rec_batch[:]
                 return batch
             return []
         client.poll = poll