diff --git a/swash/processing/post.py b/swash/processing/post.py
index 15b0b79..39b8aed 100644
--- a/swash/processing/post.py
+++ b/swash/processing/post.py
@@ -5,7 +5,6 @@ import pathlib
 
 import matplotlib.pyplot as plt
 import numpy as np
-import scipy.fft as fft
 import scipy.signal as sgl
 
 from .read_swash import *