diff --git a/computer_oriented_statistical_methods/Gaussian_elimination.cpp b/computer_oriented_statistical_methods/gaussian_elimination.cpp
similarity index 100%
rename from computer_oriented_statistical_methods/Gaussian_elimination.cpp
rename to computer_oriented_statistical_methods/gaussian_elimination.cpp
diff --git a/others/Buzz_number.cpp b/others/buzz_number.cpp
similarity index 100%
rename from others/Buzz_number.cpp
rename to others/buzz_number.cpp
diff --git a/others/GCD_of_n_numbers.cpp b/others/gcd_of_n_numbers.cpp
similarity index 100%
rename from others/GCD_of_n_numbers.cpp
rename to others/gcd_of_n_numbers.cpp