diff --git a/eng/Versions.props b/eng/Versions.props
index 715a5afa37d6..62873032cf57 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -325,8 +325,8 @@
     <XunitExtensibilityExecutionVersion>$(XunitVersion)</XunitExtensibilityExecutionVersion>
     <XUnitRunnerVisualStudioVersion>2.8.2</XUnitRunnerVisualStudioVersion>
     <MicrosoftDataSqlClientVersion>5.2.2</MicrosoftDataSqlClientVersion>
-    <MicrosoftOpenApiVersion>2.0.0-preview.18</MicrosoftOpenApiVersion>
-    <MicrosoftOpenApiYamlReaderVersion>2.0.0-preview.18</MicrosoftOpenApiYamlReaderVersion>
+    <MicrosoftOpenApiVersion>2.0.0-preview.21</MicrosoftOpenApiVersion>
+    <MicrosoftOpenApiYamlReaderVersion>2.0.0-preview.21</MicrosoftOpenApiYamlReaderVersion>
     <!-- dotnet tool versions (see also auto-updated DotnetEfVersion property). -->
     <DotnetDumpVersion>6.0.322601</DotnetDumpVersion>
     <DotnetServeVersion>1.10.93</DotnetServeVersion>