diff --git a/roboticstoolbox/mobile/EKF.py b/roboticstoolbox/mobile/EKF.py
index 27c7d37e..de2ed6ea 100644
--- a/roboticstoolbox/mobile/EKF.py
+++ b/roboticstoolbox/mobile/EKF.py
@@ -6,7 +6,8 @@
 from collections import namedtuple
 import numpy as np
 from math import pi
-from scipy import integrate, randn
+from scipy import integrate
+from numpy import random
 from scipy.linalg import sqrtm, block_diag
 from scipy.stats.distributions import chi2
 import matplotlib.pyplot as plt