diff --git a/matrix/src/lib.rs b/matrix/src/lib.rs
index d82c800..9064302 100644
--- a/matrix/src/lib.rs
+++ b/matrix/src/lib.rs
@@ -1,4 +1,4 @@
-use std::ops::{Add, AddAssign, Mul, MulAssign};
+use std::ops::{Add, AddAssign, Mul};
 
 use rand::{thread_rng, Rng};
 
@@ -17,7 +17,7 @@ fn check_valid<T>(a: &Matrix<T>) -> bool {
 }
 
 pub fn sum<T: Add<Output = T> + Copy>(a: &Matrix<T>, b: &Matrix<T>) -> Option<Matrix<T>> {
-	if !(check_valid(&a) && check_valid(&b)) {
+	if !(check_valid(a) && check_valid(b)) {
 		return None;
 	}
 
@@ -40,7 +40,7 @@ pub fn mul<T: Mul<Output = T> + Copy + AddAssign + From<u8>>(
 	a: &Matrix<T>,
 	b: &Matrix<T>,
 ) -> Option<Matrix<T>> {
-	if !(check_valid(&a) && check_valid(&b)) {
+	if !(check_valid(a) && check_valid(b)) {
 		return None;
 	}
 
diff --git a/matrix_graphics/Cargo.toml b/matrix_graphics/Cargo.toml
index bebf7e1..b6a3e47 100644
--- a/matrix_graphics/Cargo.toml
+++ b/matrix_graphics/Cargo.toml
@@ -9,10 +9,10 @@ optimize = ["log/release_max_level_warn"]
 default = ["optimize"]
 
 [dependencies]
-env_logger = "0.10"
-log = "0.4"
+env_logger = "0.10.0"
+log = "0.4.17"
 matrix = { version = "0.1.2", path = "../matrix" }
 pixels = "0.11.0"
-winit = "0.28.1"
+winit = "0.28.2"
 winit_input_helper = "0.14.0"
 bresenham = "0.1.1"
diff --git a/matrix_graphics/src/main.rs b/matrix_graphics/src/main.rs
index 502bf26..3558dbf 100644
--- a/matrix_graphics/src/main.rs
+++ b/matrix_graphics/src/main.rs
@@ -107,16 +107,13 @@ fn main() {
 	let mut bitmap: [[bool; WIDTH as usize]; HEIGHT as usize] =
 		[[false; WIDTH as usize]; HEIGHT as usize];
 	event_loop.run(move |event, _, control_flow| {
-		match event {
-			Event::MainEventsCleared => {
-				render(pixels.get_frame_mut(), &bitmap);
-				if let Err(err) = pixels.render() {
-					error!("pixels.render() failed: {err}");
-					*control_flow = ControlFlow::Exit;
-					return;
-				}
+		if event == Event::MainEventsCleared {
+			render(pixels.get_frame_mut(), &bitmap);
+			if let Err(err) = pixels.render() {
+				error!("pixels.render() failed: {err}");
+				*control_flow = ControlFlow::Exit;
+				return;
 			}
-			_ => {}
 		}
 
 		// Handle input events