diff --git a/eng/Versions.props b/eng/Versions.props
index 227cc65414..f919af7ec5 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -238,7 +238,7 @@
     <!-- Packages from 2.1, 2.2, and 3.1 branches used for site extension build. -->
     <MicrosoftAspNetCoreAzureAppServicesSiteExtension21PackageVersion>2.1.1</MicrosoftAspNetCoreAzureAppServicesSiteExtension21PackageVersion>
     <MicrosoftAspNetCoreAzureAppServicesSiteExtension22PackageVersion>2.2.0</MicrosoftAspNetCoreAzureAppServicesSiteExtension22PackageVersion>
-    <MicrosoftAspNetCoreAzureAppServicesSiteExtension31PackageVersion>3.1.14-servicing-21166-8</MicrosoftAspNetCoreAzureAppServicesSiteExtension31PackageVersion>
+    <MicrosoftAspNetCoreAzureAppServicesSiteExtension31PackageVersion>3.1.15-servicing-21215-12</MicrosoftAspNetCoreAzureAppServicesSiteExtension31PackageVersion>
     <MicrosoftAspNetCoreAzureAppServicesSiteExtension31x64PackageVersion>$(MicrosoftAspNetCoreAzureAppServicesSiteExtension31PackageVersion)</MicrosoftAspNetCoreAzureAppServicesSiteExtension31x64PackageVersion>
     <MicrosoftAspNetCoreAzureAppServicesSiteExtension31x86PackageVersion>$(MicrosoftAspNetCoreAzureAppServicesSiteExtension31PackageVersion)</MicrosoftAspNetCoreAzureAppServicesSiteExtension31x86PackageVersion>
     <!-- 3rd party dependencies -->