diff --git a/src/CodeAnalysis.Tests/CodeAnalysis.Tests.csproj b/src/CodeAnalysis.Tests/CodeAnalysis.Tests.csproj
index 50881e8..53ba172 100644
--- a/src/CodeAnalysis.Tests/CodeAnalysis.Tests.csproj
+++ b/src/CodeAnalysis.Tests/CodeAnalysis.Tests.csproj
@@ -8,7 +8,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.0.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
-    <PackageReference Include="System.Formats.Asn1" Version="9.0.10" />
+    <PackageReference Include="System.Formats.Asn1" Version="10.0.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" Version="4.13.0" />