diff --git a/.env b/.env
deleted file mode 100644
index 82c1fada..00000000
--- a/.env
+++ /dev/null
@@ -1,16 +0,0 @@
-# production database credentials
-PROD_DB_USER=postgres
-PROD_DB_PASSWORD=
-PROD_DB_HOST=localhost
-PROD_DB_PORT=5432
-
-# test database credentials
-TEST_DB_USER=postgres
-TEST_DB_PASSWORD=postgres
-TEST_DB_HOST=localhost
-TEST_DB_PORT=5432
-
-#Gitlab token
-HUB_TOKEN=9s_CJYh5TcWhyYL416MM
-
-DEV_SECRET_NAME=dp.st.dev.Axvak1ILOlCOwUNGajv7fg5VPaacFR6OL1kdb3YGWHX
\ No newline at end of file
diff --git a/persistence/models/city.py b/persistence/models/city.py
index bc95fa21..2b9e9a12 100644
--- a/persistence/models/city.py
+++ b/persistence/models/city.py
@@ -11,6 +11,7 @@ from persistence.db_config import Base
 from sqlalchemy.dialects.postgresql import JSONB
 from sqlalchemy.orm import relationship
 import datetime
+import numpy as np
 
 
 class City(Base):
@@ -41,7 +42,9 @@ class City(Base):
     self.name = name
     self.srs_name = srs_name
     self.country_code = country_code
-    self.lower_corner = l_corner.tolist()
-    self.upper_corner = u_corner.tolist()
+    l_corner = l_corner.tolist() if type(l_corner) == np.ndarray else l_corner
+    u_corner = u_corner.tolist() if type(u_corner) == np.ndarray else u_corner
+    self.lower_corner = l_corner
+    self.upper_corner = u_corner