diff --git a/src/Sight.IoC/Sight.IoC.csproj b/src/Sight.IoC/Sight.IoC.csproj
index fa33e9a..a659fca 100644
--- a/src/Sight.IoC/Sight.IoC.csproj
+++ b/src/Sight.IoC/Sight.IoC.csproj
@@ -7,7 +7,7 @@
     <ProjectReference Include="..\Sight.Linq\Sight.Linq.csproj" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)' == 'net472'">
-    <PackageReference Include="System.Collections.Immutable" Version="8.0.0" />
+    <PackageReference Include="System.Collections.Immutable" Version="10.0.7" />
   </ItemGroup>
   <ItemGroup Condition="'$(TargetFramework)' == 'net472' Or '$(TargetFramework)' == 'netcoreapp3.1'">
     <PackageReference Include="Nullable" Version="1.3.1">