diff --git a/src/Tinify/Tinify.csproj b/src/Tinify/Tinify.csproj
old mode 100755
new mode 100644
index e71c406..3696e2a
--- a/src/Tinify/Tinify.csproj
+++ b/src/Tinify/Tinify.csproj
@@ -41,7 +41,7 @@
 	</ItemGroup>
 
 	<ItemGroup>
-		<PackageReference Include="System.Text.Json" Version="6.0.5" />
+		<PackageReference Include="System.Text.Json" Version="8.0.4" />
 	</ItemGroup>
 
 </Project>