diff --git a/python_src/lasp/lasp_measurement.py b/python_src/lasp/lasp_measurement.py
index b2e9d85..61a4ec4 100644
--- a/python_src/lasp/lasp_measurement.py
+++ b/python_src/lasp/lasp_measurement.py
@@ -379,7 +379,7 @@ class Measurement:
         """
         Create new UUID for measurement and store in file.
         """
-        self.setAttribute('UUID', str(uuid.uuid4()))
+        self.setAttribute('UUID', str(uuid.uuid1()))
 
     @property
     def UUID(self):