diff --git a/Negum.Core/Negum.Core.csproj b/Negum.Core/Negum.Core.csproj
index 5cc1de3..d944ce0 100644
--- a/Negum.Core/Negum.Core.csproj
+++ b/Negum.Core/Negum.Core.csproj
@@ -8,7 +8,7 @@
         <Authors>The Negum Project</Authors>
         <Copyright>MIT License</Copyright>
         <PackageProjectUrl>https://github.com/TheNegumProject/Negum.Core</PackageProjectUrl>
-        <PackageLicense>https://github.com/TheNegumProject/Negum.Core</PackageLicense>
+        <PackageLicenseExpression>MIT</PackageLicenseExpression>
         <RepositoryUrl>https://github.com/TheNegumProject/Negum.Core</RepositoryUrl>
         <RepositoryType>git</RepositoryType>
         <PackageRequireLicenseAcceptance>true</PackageRequireLicenseAcceptance>
diff --git a/Tests/Negum.Core.Tests.SDL.Png/Negum.Core.Tests.SDL.Png.csproj b/Tests/Negum.Core.Tests.SDL.Png/Negum.Core.Tests.SDL.Png.csproj
index c9b6814..5d22461 100644
--- a/Tests/Negum.Core.Tests.SDL.Png/Negum.Core.Tests.SDL.Png.csproj
+++ b/Tests/Negum.Core.Tests.SDL.Png/Negum.Core.Tests.SDL.Png.csproj
@@ -4,7 +4,7 @@
         <OutputType>Exe</OutputType>
         <TargetFramework>net7.0</TargetFramework>
         <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
-        <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
+<!--        <TreatWarningsAsErrors>true</TreatWarningsAsErrors>-->
     </PropertyGroup>
 
     <ItemGroup>