diff --git a/bilby/gw/likelihood.py b/bilby/gw/likelihood.py
index aafc9d3b8c421c4af3d0cdee60fad8ec9e22c5ce..41550b6ddc22e4b6da9448a13e97e0c9b7ce2ab5 100644
--- a/bilby/gw/likelihood.py
+++ b/bilby/gw/likelihood.py
@@ -5,7 +5,6 @@ import copy
 
 import numpy as np
 import pandas as pd
-from scipy.interpolate import interp1d
 from scipy.special import logsumexp
 
 from ..core.likelihood import Likelihood
diff --git a/test/integration/sampler_run_test.py b/test/integration/sampler_run_test.py
index 2b225c01bdf318ff0eadfd85597aeed95d2a9f4c..c72ca91b71332c8a0c80852aee815dc245399323 100644
--- a/test/integration/sampler_run_test.py
+++ b/test/integration/sampler_run_test.py
@@ -95,10 +95,10 @@ class TestRunningSamplers(unittest.TestCase):
             likelihood=self.likelihood,
             priors=self.priors,
             sampler="kombine",
-            iterations=1000,
-            nwalkers=100,
+            iterations=2000,
+            nwalkers=20,
             save=False,
-            autoburnin=True,
+            autoburnin=False,
         )
 
     def test_run_nestle(self):