diff --git a/pyclustering/nnet/tests/syncsegm_tests.py b/pyclustering/nnet/tests/syncsegm_tests.py
index <HASH>..<HASH> 100644
--- a/pyclustering/nnet/tests/syncsegm_tests.py
+++ b/pyclustering/nnet/tests/syncsegm_tests.py
@@ -38,7 +38,7 @@ class Test(unittest.TestCase):
     def templatesyncsegmSegmentation(self, image_source, radius_color, radius_object, noise_size, expected_color_segments, expected_object_segments, collect_dynamic):

         result_testing = False;

         

-        for _ in range(0, 3, 1):

+        for _ in range(0, 5, 1):

             algorithm = syncsegm(radius_color, radius_object, noise_size);

             analyser = algorithm.process(image_source, collect_dynamic, 0.9995, 0.9995);
[pyclustering.nnet] Improve staibility of unit-tests for randomized algorithms.