diff --git a/src/lib/apimanifest.csproj b/src/lib/apimanifest.csproj
index 7f5954a..0815a16 100644
--- a/src/lib/apimanifest.csproj
+++ b/src/lib/apimanifest.csproj
@@ -30,7 +30,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.OpenApi.Readers" Version="1.6.20" />
+    <PackageReference Include="Microsoft.OpenApi.Readers" Version="1.6.21" />
     <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.11.20">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
       <PrivateAssets>all</PrivateAssets>