diff --git a/19-CornellBoxMixtureDensity/19-CornellBoxMixtureDensity.csproj b/19-CornellBoxMixtureDensity/19-CornellBoxMixtureDensity.csproj
index 1e69b35..8e67565 100644
--- a/19-CornellBoxMixtureDensity/19-CornellBoxMixtureDensity.csproj
+++ b/19-CornellBoxMixtureDensity/19-CornellBoxMixtureDensity.csproj
@@ -7,7 +7,7 @@
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-    <PackageReference Include="SixLabors.ImageSharp" Version="1.0.0-beta0007" />
+    <PackageReference Include="SixLabors.ImageSharp" Version="2.1.7" />
   </ItemGroup>
 
   <ItemGroup>