diff --git a/include/classes/Simulation.h b/include/classes/Simulation.h
index 276f2251..b856d5ff 100644
--- a/include/classes/Simulation.h
+++ b/include/classes/Simulation.h
@@ -98,9 +98,9 @@ class Simulation
 
     void execute();
 
-    void UpdateVariables(double Sciantix_variables[], double Sciantix_diffusion_modes[]);
+    void update(double Sciantix_variables[], double Sciantix_diffusion_modes[]);
 
-    void Output();
+    void output();
 
     /**
      * @brief Burnup() calculates the local burnup from fission rate and fuel density.
diff --git a/src/Sciantix.C b/src/Sciantix.C
index c9e419ce..4c43e396 100644
--- a/src/Sciantix.C
+++ b/src/Sciantix.C
@@ -24,7 +24,7 @@ void Sciantix(int Sciantix_options[], double Sciantix_history[], double Sciantix
 
     simulation->execute();
 
-    simulation->UpdateVariables(Sciantix_variables, Sciantix_diffusion_modes);
+    simulation->update(Sciantix_variables, Sciantix_diffusion_modes);
 
-    simulation->Output();
+    simulation->output();
 }
\ No newline at end of file
diff --git a/src/file_manager/Output.C b/src/file_manager/Output.C
index bdd32876..12fb4267 100644
--- a/src/file_manager/Output.C
+++ b/src/file_manager/Output.C
@@ -28,7 +28,7 @@ inline bool if_exist(const std::string &name)
 	return (stat(name.c_str(), &buffer) == 0);
 }
 
-void Simulation::Output()
+void Simulation::output()
 {
 	std::string output_name = TestPath + "output.txt";
 	std::fstream output_file;
diff --git a/src/operations/UpdateVariables.C b/src/operations/UpdateVariables.C
index 385d77ce..75c3d732 100644
--- a/src/operations/UpdateVariables.C
+++ b/src/operations/UpdateVariables.C
@@ -99,7 +99,7 @@ std::map<int, std::string> update_sciantix_variable = {
 };
 
 
-void Simulation::UpdateVariables(double Sciantix_variables[], double Sciantix_diffusion_modes[])
+void Simulation::update(double Sciantix_variables[], double Sciantix_diffusion_modes[])
 {
     for (std::map<int, std::string>::iterator it = update_sciantix_variable.begin(); it != update_sciantix_variable.end(); it++)
     {