diff --git a/tests/AnalyzerTests/AnalyzerTests.csproj b/tests/AnalyzerTests/AnalyzerTests.csproj
index d85788f871..53b34bb6a7 100644
--- a/tests/AnalyzerTests/AnalyzerTests.csproj
+++ b/tests/AnalyzerTests/AnalyzerTests.csproj
@@ -9,6 +9,8 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="System.Formats.Asn1" Version="8.0.1" />
+
     <PackageReference Include="FluentAssertions" Version="6.12.0" />
     <PackageReference Include="GitHubActionsTestLogger" Version="2.3.3">
       <PrivateAssets>all</PrivateAssets>
diff --git a/tests/Shared/Shared.csproj b/tests/Shared/Shared.csproj
index 1034ea80d1..6791c83c48 100644
--- a/tests/Shared/Shared.csproj
+++ b/tests/Shared/Shared.csproj
@@ -10,6 +10,8 @@
   </ItemGroup>
   
   <ItemGroup>
+    <PackageReference Include="System.Formats.Asn1" Version="8.0.1" />
+    
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzer.Testing" Version="1.1.2" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp.Workspaces" />
   </ItemGroup>
diff --git a/tests/SnapshotTests/SnapshotTests.csproj b/tests/SnapshotTests/SnapshotTests.csproj
index a1bce54b29..4339517ac3 100644
--- a/tests/SnapshotTests/SnapshotTests.csproj
+++ b/tests/SnapshotTests/SnapshotTests.csproj
@@ -22,6 +22,8 @@
 </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="System.Formats.Asn1" Version="8.0.1" />
+    
     <PackageReference Include="GitHubActionsTestLogger" Version="2.4.1">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>