diff --git a/Infinity.Tests/Infinity.Core.Tests/Infinity.Core.Tests.csproj b/Infinity.Tests/Infinity.Core.Tests/Infinity.Core.Tests.csproj
old mode 100755
new mode 100644
index 7d7d444..6a4c50c
--- a/Infinity.Tests/Infinity.Core.Tests/Infinity.Core.Tests.csproj
+++ b/Infinity.Tests/Infinity.Core.Tests/Infinity.Core.Tests.csproj
@@ -12,7 +12,7 @@
 
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+	<PackageReference Include="xunit" Version="2.9.3" />
 	<PackageReference Include="xunit.runner.visualstudio" Version="2.5.7">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>