diff --git a/hawk/processes/wps_causal.py b/hawk/processes/wps_causal.py
index 22a335d..feeb5a7 100644
--- a/hawk/processes/wps_causal.py
+++ b/hawk/processes/wps_causal.py
@@ -5,7 +5,6 @@
 import logging
 import pandas as pd
 from hawk.analysis import CausalAnalysis
-from pathlib import Path
 import os
 
 LOGGER = logging.getLogger("PYWPS")