diff --git a/distance3d/benchmark.py b/distance3d/benchmark.py
index d298a943..ccc2379d 100644
--- a/distance3d/benchmark.py
+++ b/distance3d/benchmark.py
@@ -9,10 +9,10 @@ def __init__(self):
         self.total_time_ = {}
 
     def start(self, name):
-        self._start_time[name] = time.time()
+        self._start_time[name] = time.perf_counter()
 
     def stop(self, name):
-        stop_time = time.time()
+        stop_time = time.perf_counter()
         assert name in self._start_time
         return stop_time - self._start_time[name]