diff --git a/Cargo.toml b/Cargo.toml
index 3dbb27f..fc97518 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,6 +12,6 @@ path = "src/main.rs"
 [dependencies]
 rustc-serialize = "0.3"
 rand = "0.3.7"
-piston_window = "0.52.0"
-pistoncore-sdl2_window = "0.34.0"
-piston2d-opengl_graphics = "0.32.0"
+piston_window = "0.61.0"
+pistoncore-sdl2_window = "0.38.0"
+piston2d-opengl_graphics = "0.37.0"
diff --git a/src/number_renderer.rs b/src/number_renderer.rs
index 6f18468..a4cc6f9 100644
--- a/src/number_renderer.rs
+++ b/src/number_renderer.rs
@@ -33,7 +33,7 @@ impl NumberRenderer {
 
         for digit in digits.iter() {
             Image::new_color([color[0], color[1], color[2], 1.0])
-                .src_rect([(*digit * DIGITS_WIDTH as u32) as i32, 0, DIGITS_WIDTH as i32, DIGITS_HEIGHT as i32])
+                .src_rect([(*digit * DIGITS_WIDTH as u32) as f64, 0 as f64, DIGITS_WIDTH as f64, DIGITS_HEIGHT as f64])
                 .rect([x, y, width, height])
                 .draw(&self.image,
                       &DrawState::default(),
@@ -61,4 +61,4 @@ fn number_to_digits(number: u32) -> Vec<u32> {
     }
 
     digits
-}
+}
\ No newline at end of file