diff --git a/ignite/distributed/comp_models/base.py b/ignite/distributed/comp_models/base.py
index 717ea4d8304b..c8f74dab9649 100644
--- a/ignite/distributed/comp_models/base.py
+++ b/ignite/distributed/comp_models/base.py
@@ -1,4 +1,3 @@
-import warnings
 from abc import ABCMeta, abstractmethod
 from numbers import Number
 from typing import Any, Callable, List, Optional, Union, cast
diff --git a/ignite/distributed/comp_models/horovod.py b/ignite/distributed/comp_models/horovod.py
index a3cd3a172ae7..4dab203eff83 100644
--- a/ignite/distributed/comp_models/horovod.py
+++ b/ignite/distributed/comp_models/horovod.py
@@ -1,4 +1,3 @@
-import os
 import warnings
 from typing import Any, Callable, Mapping, Optional, Tuple, cast