diff --git a/requirements.txt b/requirements.txt
index 47c318983..3aa8c6bdf 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -28,7 +28,7 @@ stevedore>=1.28.0 # Apache-2.0
 voluptuous>=0.11.1 # BSD License
 SQLAlchemy>=1.2.5 # MIT
 sympy>=1.1.1 # BSD
-pysnmp>=4.4.4 # BSD
+pysnmp-lextudio>=5.0.0  # BSD
 PyJWT>=1.6.0 # MIT
 osprofiler>=2.0.0 # Apache-2.0
 keystoneauth1>=3.6.2 # Apache-2.0
diff --git a/vitrage/storage/__init__.py b/vitrage/storage/__init__.py
index 3bd9a5cd6..06a5b5bdc 100644
--- a/vitrage/storage/__init__.py
+++ b/vitrage/storage/__init__.py
@@ -15,6 +15,7 @@
 from oslo_config import cfg
 from oslo_db.sqlalchemy import enginefacade
 from oslo_log import log
+from sqlalchemy import text
 from stevedore import driver
 import tenacity
 import threading
@@ -56,7 +57,7 @@ def get_connection_from_config():
         """Return an open connection to the database."""
         conn = mgr.driver(url)
         with enginefacade.reader.using(_CONTEXT) as session:
-            session.execute('SELECT 1;')
+            session.execute(text('SELECT 1;'))
         return conn
 
     return _get_connection()