diff --git a/tests/unit/Transformer/ValidColorValuesProvider.php b/tests/unit/Transformer/ValidColorValuesProvider.php
index e52a7bf..769cb1a 100644
--- a/tests/unit/Transformer/ValidColorValuesProvider.php
+++ b/tests/unit/Transformer/ValidColorValuesProvider.php
@@ -176,7 +176,7 @@ class ValidColorValuesProvider
         ],
         'violet'  => [
             self::CMYK => [
-                'cyan'    => 0.19,
+                'cyan'    => 0.191,
                 'magenta' => 0.321,
                 'yellow'  => 0.0,
                 'key'     => 0.29,