diff --git a/build/artifacts.props b/build/artifacts.props
index 7bbef9ebb3..17c9c4d313 100644
--- a/build/artifacts.props
+++ b/build/artifacts.props
@@ -174,6 +174,7 @@
     <PackageArtifact Include="Microsoft.EntityFrameworkCore.Attributes" Category="ship" AppMetapackage="true"/>
     <PackageArtifact Include="Microsoft.EntityFrameworkCore.Design" Category="ship" AppMetapackage="true"/>
     <PackageArtifact Include="Microsoft.EntityFrameworkCore.InMemory" Category="ship" AppMetapackage="true"/>
+    <PackageArtifact Include="Microsoft.EntityFrameworkCore.Proxies" Category="ship"/>
     <PackageArtifact Include="Microsoft.EntityFrameworkCore.Relational" Category="ship" AppMetapackage="true"/>
     <PackageArtifact Include="Microsoft.EntityFrameworkCore.Relational.Specification.Tests" Category="ship" />
     <PackageArtifact Include="Microsoft.EntityFrameworkCore.Specification.Tests" Category="ship" />
diff --git a/build/dependencies.props b/build/dependencies.props
index ecb43b7f7d..dab3bbc395 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -3,6 +3,7 @@
     <BenchmarkDotNetPackageVersion>0.10.11</BenchmarkDotNetPackageVersion>
     <Benchmarks_11_SystemDataSqlClientPackageVersion>4.3.1</Benchmarks_11_SystemDataSqlClientPackageVersion>
     <BuildBundlerMinifierPackageVersion>2.4.337</BuildBundlerMinifierPackageVersion>
+    <CastleCorePackageVersion>4.2.1</CastleCorePackageVersion>
     <EntityFrameworkPackageVersion>6.1.3</EntityFrameworkPackageVersion>
     <FSharpCorePackageVersion>4.2.1</FSharpCorePackageVersion>
     <FSharpNETSdkPackageVersion>1.0.5</FSharpNETSdkPackageVersion>
diff --git a/build/external-dependencies.props b/build/external-dependencies.props
index 52091d70b7..daef9b7f3b 100644
--- a/build/external-dependencies.props
+++ b/build/external-dependencies.props
@@ -342,6 +342,7 @@
       <NoWarn>KRB2004</NoWarn>
       <VariableName>VisualStudio_NewtonsoftJsonPackageVersion</VariableName>
     </ExternalDependency>
+    <ExternalDependency Include="Castle.Core" Version="$(CastleCorePackageVersion)" Source="$(DefaultNuGetFeed)" />
     <ExternalDependency Include="NuGet.Frameworks" Version="$(NuGetFrameworksPackageVersion)" Source="$(DefaultNuGetFeed)" />
     <ExternalDependency Include="Oracle.ManagedDataAccess" Version="$(OracleManagedDataAccessPackageVersion)" Source="$(DefaultNuGetFeed)" />
     <ExternalDependency Include="Remotion.Linq" Version="$(RemotionLinqPackageVersion)" Source="$(DefaultNuGetFeed)" />
diff --git a/modules/EntityFrameworkCore b/modules/EntityFrameworkCore
index b95f23ffa4..972b71ffaf 160000
--- a/modules/EntityFrameworkCore
+++ b/modules/EntityFrameworkCore
@@ -1 +1 @@
-Subproject commit b95f23ffa4fbba305b3f0ea4c864fe53f456ad58
+Subproject commit 972b71ffaf73a73c14e455b18801b7391f27467f