diff --git a/src/osa/paths.py b/src/osa/paths.py
index 0b27b7b6..3fc8a914 100644
--- a/src/osa/paths.py
+++ b/src/osa/paths.py
@@ -7,11 +7,9 @@
 from typing import List
 import subprocess
 import time
-import os
 
 import lstchain
 from astropy.table import Table
-from astropy import units as u
 from lstchain.onsite import (find_systematics_correction_file,
                              find_time_calibration_file,
                              find_filter_wheels)