diff --git a/.github/.keepalive b/.github/.keepalive
index a4124ad..55b2200 100644
--- a/.github/.keepalive
+++ b/.github/.keepalive
@@ -1 +1 @@
-2023-04-01T01:32:31.849Z
+2023-05-01T01:29:43.095Z
diff --git a/README.md b/README.md
index e6d0463..9322e88 100644
--- a/README.md
+++ b/README.md
@@ -285,7 +285,7 @@ static float addf( const float x, const float y ) {
     return x + y;
 }
 
-int main() {
+int main( void ) {
     // Create input strided arrays:
     float X[] = { 1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f };
     float Y[] = { 1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f };
diff --git a/examples/c/example.c b/examples/c/example.c
index 6311f50..eaeff7b 100644
--- a/examples/c/example.c
+++ b/examples/c/example.c
@@ -26,7 +26,7 @@ static float addf( const float x, const float y ) {
 	return x + y;
 }
 
-int main() {
+int main( void ) {
 	// Create input strided arrays:
 	float X[] = { 1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f };
 	float Y[] = { 1.0f, 2.0f, 3.0f, 4.0f, 5.0f, 6.0f };