diff --git a/README.md b/README.md
index 620758d..559bcd6 100644
--- a/README.md
+++ b/README.md
@@ -189,8 +189,8 @@ color.saturation(); // 0.68
 color.lightness(); // 0.8039
 
 color.hsv_hue(); // 210.0
-color.hsv_saturation(); // 0.28
-color.hsv_value(); // 0.94
+color.hsv_saturation(); // 0.2845
+color.hsv_value(); // 0.9373
 
 color.luma(); // 0.59
 color.luminance(); // 0.79
diff --git a/src/conversion/hsv.rs b/src/conversion/hsv.rs
index f39a1e3..7a4ab14 100644
--- a/src/conversion/hsv.rs
+++ b/src/conversion/hsv.rs
@@ -50,7 +50,7 @@ pub fn rgb2hsv(color: (f64, f64, f64)) -> (f64, f64, f64) {
         s = delta / max;
     }
 
-    (round(h, 2), round(s, 2), round(v, 2))
+    (round(h, 4), round(s, 4), round(v, 4))
 }
 
 #[cfg(test)]
diff --git a/tests/color_channel.rs b/tests/color_channel.rs
index a5dce75..63074d4 100644
--- a/tests/color_channel.rs
+++ b/tests/color_channel.rs
@@ -15,8 +15,8 @@ fn test_color_channel() {
     assert_eq!(color.lightness(), 0.8039);
 
     assert_eq!(color.hsv_hue(), 210.0);
-    assert_eq!(color.hsv_saturation(), 0.28);
-    assert_eq!(color.hsv_value(), 0.94);
+    assert_eq!(color.hsv_saturation(), 0.2845);
+    assert_eq!(color.hsv_value(), 0.9373);
 
     assert_eq!(color.luma(), 0.59);
     assert_eq!(color.luminance(), 0.79);