diff --git a/simulator/src/main.rs b/simulator/src/main.rs
index bee04fb..4cb7c0b 100644
--- a/simulator/src/main.rs
+++ b/simulator/src/main.rs
@@ -46,6 +46,7 @@ impl<'a> ApplicationHandler for StateApplication<'a>{
                     self.state.as_mut().unwrap().resize(physical_size);
                 }
                 WindowEvent::RedrawRequested => {
+                    self.state.as_mut().unwrap().update();
                     self.state.as_mut().unwrap().render().unwrap();
                 }
                 WindowEvent::KeyboardInput { .. } => {