diff --git a/src/Microsoft.OpenApi.OData.Reader/Microsoft.OpenAPI.OData.Reader.csproj b/src/Microsoft.OpenApi.OData.Reader/Microsoft.OpenAPI.OData.Reader.csproj
index d863723f..a7486366 100644
--- a/src/Microsoft.OpenApi.OData.Reader/Microsoft.OpenAPI.OData.Reader.csproj
+++ b/src/Microsoft.OpenApi.OData.Reader/Microsoft.OpenAPI.OData.Reader.csproj
@@ -30,7 +30,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="Microsoft.OData.Edm" Version="8.2.3" />
-    <PackageReference Include="Microsoft.OpenApi" Version="2.0.0-preview.22" />
+    <PackageReference Include="Microsoft.OpenApi" Version="2.0.0-preview9" />
     <None Include="..\..\README.md" Pack="true" PackagePath="\" />
     <PackageReference Include="Microsoft.VisualStudio.Threading.Analyzers" Version="17.14.15">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
diff --git a/src/OoasGui/OoasGui.csproj b/src/OoasGui/OoasGui.csproj
index 995476ef..7a89a874 100644
--- a/src/OoasGui/OoasGui.csproj
+++ b/src/OoasGui/OoasGui.csproj
@@ -17,7 +17,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.CSharp" Version="4.7.0" />
     <PackageReference Include="Microsoft.OData.Edm" Version="8.2.3" />
-    <PackageReference Include="Microsoft.OpenApi" Version="2.0.0-preview.22" />
+    <PackageReference Include="Microsoft.OpenApi" Version="2.0.0-preview9" />
     <PackageReference Include="System.Data.DataSetExtensions" Version="4.5.0" />
   </ItemGroup>
 </Project>
diff --git a/tool/UpdateDocs/UpdateDocs.csproj b/tool/UpdateDocs/UpdateDocs.csproj
index bbac5379..fbf2d587 100644
--- a/tool/UpdateDocs/UpdateDocs.csproj
+++ b/tool/UpdateDocs/UpdateDocs.csproj
@@ -13,6 +13,6 @@
   </ItemGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.OData.Edm" Version="8.2.3" />
-    <PackageReference Include="Microsoft.OpenApi" Version="2.0.0-preview.22" />
+    <PackageReference Include="Microsoft.OpenApi" Version="2.0.0-preview9" />
   </ItemGroup>
 </Project>
\ No newline at end of file