diff --git a/traces/timeseries.py b/traces/timeseries.py
index 7a48098..6be9572 100644
--- a/traces/timeseries.py
+++ b/traces/timeseries.py
@@ -12,7 +12,6 @@
 from queue import PriorityQueue
 
 import sortedcontainers
-from dateutil.parser import parse as date_parse
 from infinity import inf
 
 from . import histogram, operations, plot, utils
@@ -809,7 +808,9 @@ def merge(cls, ts_list, compact=True, operation=None):
 
     @staticmethod
     def csv_time_transform(raw):
-        return date_parse(raw)
+        from dateutil.parser import parse
+
+        return parse(raw)
 
     @staticmethod
     def csv_value_transform(raw):