diff --git a/examples/multiobjective/nsgaii/nsgaii_standard_settings.py b/examples/multiobjective/nsgaii/nsgaii_standard_settings.py
index 415b6b1d..ec51ff3d 100644
--- a/examples/multiobjective/nsgaii/nsgaii_standard_settings.py
+++ b/examples/multiobjective/nsgaii/nsgaii_standard_settings.py
@@ -21,7 +21,7 @@
         problem=problem,
         population_size=100,
         offspring_population_size=100,
-        mutation=PolynomialMutation(probability=1.0 * 1.0 / problem.number_of_variables(), distribution_index=20),
+        mutation=PolynomialMutation(probability=1.0 / problem.number_of_variables(), distribution_index=20),
         crossover=SBXCrossover(probability=1.0, distribution_index=20),
         termination_criterion=StoppingByEvaluations(max_evaluations=max_evaluations),
     )
diff --git a/pyproject.toml b/pyproject.toml
index c699794f..b440cbbe 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -11,8 +11,10 @@ version = "1.7.1"
 description = "Python version of the jMetal framework"
 readme = "README.md"
 authors = [
-    {name = "Antonio J. Nebro", email = "ajnebro@uma.es"}
+    {name = "Antonio J. Nebro", email = "ajnebro@uma.es"},
+    {name = "Antonio Benítez", email = "antonio.b@uma.es"}
 ]
+
 maintainers = [
     {name = "Antonio J. Nebro", email = "ajnebro@uma.es"},
 ]