diff --git a/src/metrics_source.py b/src/metrics_source.py
index 0ba3a6f..adc319f 100644
--- a/src/metrics_source.py
+++ b/src/metrics_source.py
@@ -1,5 +1,5 @@
 from abc import ABC, abstractmethod
-from src.metric import *
+from src.metric import Metric, CommandMetric, CustomMetric
 import os
 
 
@@ -40,4 +40,4 @@ class CustomMetricsSource(MetricsSource):
 
     def update(self):
         for metric in self._metrics:
-            metric.update()
\ No newline at end of file
+            metric.update()