diff --git a/eNMS/models/administration.py b/eNMS/models/administration.py
index 0aa595c30..244163a2c 100644
--- a/eNMS/models/administration.py
+++ b/eNMS/models/administration.py
@@ -4,8 +4,7 @@
 from os import makedirs
 from os.path import exists, getmtime
 from passlib.hash import argon2
-from pathlib import Path
-from shutil import move, rmtree
+from shutil import move
 from sqlalchemy import Boolean, ForeignKey, Integer
 from sqlalchemy.orm import relationship
 from time import ctime
diff --git a/eNMS/models/inventory.py b/eNMS/models/inventory.py
index ca92ece44..3e67a1c48 100644
--- a/eNMS/models/inventory.py
+++ b/eNMS/models/inventory.py
@@ -1,6 +1,5 @@
 from re import search, sub
 from sqlalchemy import and_, Boolean, event, ForeignKey, Integer, or_
-from sqlalchemy.sql.expression import literal
 from sqlalchemy.ext.associationproxy import association_proxy
 from sqlalchemy.orm import backref, deferred, relationship
 from sqlalchemy.schema import UniqueConstraint