diff --git a/dj_rest_auth/utils.py b/dj_rest_auth/utils.py
index 7011c8a..4ecfbc1 100644
--- a/dj_rest_auth/utils.py
+++ b/dj_rest_auth/utils.py
@@ -19,7 +19,14 @@ def default_create_token(token_model, user, serializer):
 
 def jwt_encode(user):
     from rest_framework_simplejwt.serializers import TokenObtainPairSerializer
-    TOPS = import_callable(getattr(settings, 'JWT_TOKEN_CLAIMS_SERIALIZER', TokenObtainPairSerializer))
+    rest_auth_serializers = getattr(settings, 'REST_AUTH_SERIALIZERS', {})
+
+    JWTTokenClaimsSerializer = rest_auth_serializers.get(
+        'JWT_TOKEN_CLAIMS_SERIALIZER',
+        TokenObtainPairSerializer
+    )
+
+    TOPS = import_callable(JWTTokenClaimsSerializer)
     refresh = TOPS.get_token(user)
     return refresh.access_token, refresh