diff --git a/dotnet/src/StackExchange.StacksIcons.csproj b/dotnet/src/StackExchange.StacksIcons.csproj
index 6c802061..b3592d25 100644
--- a/dotnet/src/StackExchange.StacksIcons.csproj
+++ b/dotnet/src/StackExchange.StacksIcons.csproj
@@ -41,6 +41,6 @@
 
 	<ItemGroup>
 		<FrameworkReference Include="Microsoft.AspNetCore.App" />
-		<PackageReference Include="System.Collections.Immutable" Version="9.0.9" />
+		<PackageReference Include="System.Collections.Immutable" Version="10.0.11" />
 	</ItemGroup>
 </Project>