diff --git a/tests/unit_test/unit_test.py b/tests/unit_test/unit_test.py
index a57147e7..119d7676 100755
--- a/tests/unit_test/unit_test.py
+++ b/tests/unit_test/unit_test.py
@@ -20,7 +20,7 @@ Energy = namedtuple('Energy', ['without_pseudo', 'with_pseudo'])
 # O p t #
 # ~#~#~ #
 
-precision = 2.e-7
+precision = 5.e-7
 
 # A test get a geo file and a basis file.
 # A global dict containt the result for this test