diff --git a/Main.py b/Main.py
index c9fdd2a..ce60b4f 100644
--- a/Main.py
+++ b/Main.py
@@ -21,7 +21,7 @@ SCREEN_TITLE = "Space Invaders"
 PLAYER_SPEED = 1
 
 PLAYER_BOUNDS = 32
-ALIEN_BOUNDS = 32
+ALIEN_BOUNDS = 16