diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 808a81934ce44f..9973502f088a71 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -118,21 +118,21 @@
       <Uri>https://github.com/dotnet/runtime-assets</Uri>
       <Sha>9f99c474432904fadab3bcda4a65b20c1e990a6c</Sha>
     </Dependency>
-    <Dependency Name="runtime.linux-x64.Microsoft.NETCore.Runtime.Mono.LLVM.Sdk" Version="6.0.1-alpha.1.20166.1">
+    <Dependency Name="runtime.linux-x64.Microsoft.NETCore.Runtime.Mono.LLVM.Sdk" Version="6.0.1-alpha.1.20166.2">
       <Uri>https://github.com/dotnet/llvm-project</Uri>
-      <Sha>320a29dabaa22634342c359fc1cace5c1b1f0e20</Sha>
+      <Sha>48c24491ab61bc831c2515ffb52cfdd06535436e</Sha>
     </Dependency>
-    <Dependency Name="runtime.linux-x64.Microsoft.NETCore.Runtime.Mono.LLVM.Tools" Version="6.0.1-alpha.1.20166.1">
+    <Dependency Name="runtime.linux-x64.Microsoft.NETCore.Runtime.Mono.LLVM.Tools" Version="6.0.1-alpha.1.20166.2">
       <Uri>https://github.com/dotnet/llvm-project</Uri>
-      <Sha>320a29dabaa22634342c359fc1cace5c1b1f0e20</Sha>
+      <Sha>48c24491ab61bc831c2515ffb52cfdd06535436e</Sha>
     </Dependency>
-    <Dependency Name="runtime.win-x64.Microsoft.NETCore.Runtime.Mono.LLVM.Sdk" Version="6.0.1-alpha.1.20166.1">
+    <Dependency Name="runtime.win-x64.Microsoft.NETCore.Runtime.Mono.LLVM.Sdk" Version="6.0.1-alpha.1.20166.2">
       <Uri>https://github.com/dotnet/llvm-project</Uri>
-      <Sha>320a29dabaa22634342c359fc1cace5c1b1f0e20</Sha>
+      <Sha>48c24491ab61bc831c2515ffb52cfdd06535436e</Sha>
     </Dependency>
-    <Dependency Name="runtime.win-x64.Microsoft.NETCore.Runtime.Mono.LLVM.Tools" Version="6.0.1-alpha.1.20166.1">
+    <Dependency Name="runtime.win-x64.Microsoft.NETCore.Runtime.Mono.LLVM.Tools" Version="6.0.1-alpha.1.20166.2">
       <Uri>https://github.com/dotnet/llvm-project</Uri>
-      <Sha>320a29dabaa22634342c359fc1cace5c1b1f0e20</Sha>
+      <Sha>48c24491ab61bc831c2515ffb52cfdd06535436e</Sha>
     </Dependency>
     <Dependency Name="runtime.osx.10.12-x64.Microsoft.NETCore.Runtime.Mono.LLVM.Sdk" Version="6.0.1-alpha.1.20152.1">
       <Uri>https://github.com/dotnet/llvm-project</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index 675ca6daff79c5..f474ec75ad425b 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -125,10 +125,10 @@
     <!-- ILLink -->
     <ILLinkTasksVersion>0.1.6-prerelease.20169.1</ILLinkTasksVersion>
     <!-- Mono LLVM -->
-    <runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>6.0.1-alpha.1.20166.1</runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>
-    <runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>6.0.1-alpha.1.20166.1</runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>
-    <runtimewinx64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>6.0.1-alpha.1.20166.1</runtimewinx64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>
-    <runtimewinx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>6.0.1-alpha.1.20166.1</runtimewinx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>
+    <runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>6.0.1-alpha.1.20166.2</runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>
+    <runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>6.0.1-alpha.1.20166.2</runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>
+    <runtimewinx64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>6.0.1-alpha.1.20166.2</runtimewinx64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>
+    <runtimewinx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>6.0.1-alpha.1.20166.2</runtimewinx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>
     <runtimeosx1012x64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>6.0.1-alpha.1.20152.1</runtimeosx1012x64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>
     <runtimeosx1012x64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>6.0.1-alpha.1.20152.1</runtimeosx1012x64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>
   </PropertyGroup>