diff --git a/src/Microsoft.OpenApi.Workbench/Microsoft.OpenApi.Workbench.csproj b/src/Microsoft.OpenApi.Workbench/Microsoft.OpenApi.Workbench.csproj
index 3ea08878d..7ebd20156 100644
--- a/src/Microsoft.OpenApi.Workbench/Microsoft.OpenApi.Workbench.csproj
+++ b/src/Microsoft.OpenApi.Workbench/Microsoft.OpenApi.Workbench.csproj
@@ -14,7 +14,7 @@
     </PackageReference>
     <PackageReference Include="Microsoft.Windows.Compatibility" Version="8.0.10" />
     <!-- Microsoft.Windows.Compatibility 8.0.8 depends on 8.0.0 this dependency can be removed once they update theirs -->
-    <PackageReference Include="System.Formats.Asn1" Version="8.0.1" />
+    <PackageReference Include="System.Formats.Asn1" Version="9.0.0" />
   </ItemGroup>
   <ItemGroup>
     <Resource Include="Themes\Metro\HowToApplyTheme.txt" />