diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 2de256e0e..8616bbf22 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -23,17 +23,17 @@
       <Uri>https://github.com/dotnet/arcade</Uri>
       <Sha>b5016f5688dc8ca9f3e4811ee7e2e86ad8907a40</Sha>
     </Dependency>
-    <Dependency Name="System.Reflection.Emit" Version="4.6.0-preview6.19274.8">
+    <Dependency Name="System.Reflection.Emit" Version="4.6.0-preview6.19277.2">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>ca535178383c526a0eb7a00f7ff6df36e0af1ea1</Sha>
+      <Sha>d58a8ade31b4731759c92df00d0f6398c52f3d83</Sha>
     </Dependency>
-    <Dependency Name="System.Reflection.Emit.ILGeneration" Version="4.6.0-preview6.19274.8">
+    <Dependency Name="System.Reflection.Emit.ILGeneration" Version="4.6.0-preview6.19277.2">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>ca535178383c526a0eb7a00f7ff6df36e0af1ea1</Sha>
+      <Sha>d58a8ade31b4731759c92df00d0f6398c52f3d83</Sha>
     </Dependency>
-    <Dependency Name="System.Reflection.Emit.Lightweight" Version="4.6.0-preview6.19274.8">
+    <Dependency Name="System.Reflection.Emit.Lightweight" Version="4.6.0-preview6.19277.2">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>ca535178383c526a0eb7a00f7ff6df36e0af1ea1</Sha>
+      <Sha>d58a8ade31b4731759c92df00d0f6398c52f3d83</Sha>
     </Dependency>
     <PinnedDependency Name="NETStandard.Library" Version="2.0.3">
       <Uri>https://github.com/dotnet/standard</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index a7b303d54..1500d79c8 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -28,9 +28,9 @@
     <MicrosoftDotNetBuildTasksPackagingPackageVersion>1.0.0-beta.19274.6</MicrosoftDotNetBuildTasksPackagingPackageVersion>
     <MicrosoftDotNetCodeAnalysisPackageVersion>1.0.0-beta.19274.6</MicrosoftDotNetCodeAnalysisPackageVersion>
     <MicrosoftDotNetGenAPIPackageVersion>1.0.0-beta.19274.6</MicrosoftDotNetGenAPIPackageVersion>
-    <SystemReflectionEmitPackageVersion>4.6.0-preview6.19274.8</SystemReflectionEmitPackageVersion>
-    <SystemReflectionEmitILGenerationPackageVersion>4.6.0-preview6.19274.8</SystemReflectionEmitILGenerationPackageVersion>
-    <SystemReflectionEmitLightweightPackageVersion>4.6.0-preview6.19274.8</SystemReflectionEmitLightweightPackageVersion>
+    <SystemReflectionEmitPackageVersion>4.6.0-preview6.19277.2</SystemReflectionEmitPackageVersion>
+    <SystemReflectionEmitILGenerationPackageVersion>4.6.0-preview6.19277.2</SystemReflectionEmitILGenerationPackageVersion>
+    <SystemReflectionEmitLightweightPackageVersion>4.6.0-preview6.19277.2</SystemReflectionEmitLightweightPackageVersion>
     <!-- This is the LKG stable version of NetStandard.Library from myget.org. Please don't edit this version -->
     <NetStandardLibraryPackageVersion>2.0.3</NetStandardLibraryPackageVersion>
   </PropertyGroup>