diff --git a/test/tests.py b/test/tests.py
index fabe4559b6d68cbdd980de3c611d21ce16c7da8f..7778610fae7ad380740f7df1e6a3e4bae6c2b889 100644
--- a/test/tests.py
+++ b/test/tests.py
@@ -60,7 +60,7 @@ class Test(unittest.TestCase):
         result = tupak.sampler.run_sampler(
             likelihood, priors, sampler='nestle', verbose=False, npoints=100)
         self.assertAlmostEqual(np.mean(result.samples), dL,
-                               delta=np.std(result.samples))
+                               delta=3*np.std(result.samples))
 
 
 if __name__ == '__main__':