diff --git a/2023/8/main-1.cpp b/2023/8/main-1.cpp
index 1ac633a..c227d45 100644
--- a/2023/8/main-1.cpp
+++ b/2023/8/main-1.cpp
@@ -1,7 +1,7 @@
 #include <bits/stdc++.h>
 using namespace std;
 
-int main(void) {
+int main() {
 	ios::sync_with_stdio(0);
 	cin.tie(0);
 
diff --git a/2023/8/main-2.cpp b/2023/8/main-2.cpp
index 1674517..f1a99de 100644
--- a/2023/8/main-2.cpp
+++ b/2023/8/main-2.cpp
@@ -1,7 +1,7 @@
 #include <bits/stdc++.h>
 using namespace std;
 
-int main(void) {
+int main() {
 	ios::sync_with_stdio(0);
 	cin.tie(0);