diff --git a/dj_rest_auth/app_settings.py b/dj_rest_auth/app_settings.py
index 0b28085..d2a4b85 100644
--- a/dj_rest_auth/app_settings.py
+++ b/dj_rest_auth/app_settings.py
@@ -1,4 +1,5 @@
 from dj_rest_auth.serializers import JWTSerializer as DefaultJWTSerializer
+from dj_rest_auth.serializers import JWTSerializerWithExpiration as DefaultJWTSerializerWithExpiration
 from dj_rest_auth.serializers import LoginSerializer as DefaultLoginSerializer
 from dj_rest_auth.serializers import \
     PasswordChangeSerializer as DefaultPasswordChangeSerializer
@@ -21,6 +22,8 @@ TokenSerializer = import_callable(serializers.get('TOKEN_SERIALIZER', DefaultTok
 
 JWTSerializer = import_callable(serializers.get('JWT_SERIALIZER', DefaultJWTSerializer))
 
+DefaultJWTSerializerWithExpiration = import_callable(serializers.get('JWT_SERIALIZER_WITH_EXPIRATION', DefaultJWTSerializerWithExpiration))
+
 UserDetailsSerializer = import_callable(serializers.get('USER_DETAILS_SERIALIZER', DefaultUserDetailsSerializer))
 
 LoginSerializer = import_callable(serializers.get('LOGIN_SERIALIZER', DefaultLoginSerializer))
diff --git a/dj_rest_auth/serializers.py b/dj_rest_auth/serializers.py
index 57c375d..2b879aa 100644
--- a/dj_rest_auth/serializers.py
+++ b/dj_rest_auth/serializers.py
@@ -179,6 +179,9 @@ class JWTSerializer(serializers.Serializer):
 
 
 class JWTSerializerWithExpiration(JWTSerializer):
+    """
+    Serializer for JWT authentication with expiration times.
+    """
     access_token_expiration = serializers.DateTimeField()
     refresh_token_expiration = serializers.DateTimeField()
 
diff --git a/dj_rest_auth/views.py b/dj_rest_auth/views.py
index 366118c..4081fc9 100644
--- a/dj_rest_auth/views.py
+++ b/dj_rest_auth/views.py
@@ -12,8 +12,7 @@ from rest_framework.permissions import AllowAny, IsAuthenticated
 from rest_framework.response import Response
 from rest_framework.views import APIView
 
-from serializers import JWTSerializerWithExpiration
-from .app_settings import (JWTSerializer, LoginSerializer,
+from .app_settings import (JWTSerializer, JWTSerializerWithExpiration, LoginSerializer,
                            PasswordChangeSerializer,
                            PasswordResetConfirmSerializer,
                            PasswordResetSerializer, TokenSerializer,