diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 413207fe677c4c..8bce5003baaef1 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -36,9 +36,9 @@
       <Uri>https://github.com/dotnet/standard</Uri>
       <Sha>cfe95a23647c7de1fe1a349343115bd7720d6949</Sha>
     </Dependency>
-    <Dependency Name="ILLink.Tasks" Version="0.1.6-prerelease.19567.1">
+    <Dependency Name="ILLink.Tasks" Version="0.1.6-prerelease.20114.2">
       <Uri>https://github.com/mono/linker</Uri>
-      <Sha>cbdda5a2a6fbf01f74581aa956ef2e7b03b96977</Sha>
+      <Sha>e5d6b69677dfc0da19c5b2c96b3466e8d5016327</Sha>
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index c8a49752b09d82..6efea8ac7f7424 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -122,7 +122,7 @@
     <!-- Docs -->
     <MicrosoftPrivateIntellisenseVersion>3.0.0-preview9-190909-1</MicrosoftPrivateIntellisenseVersion>
     <!-- ILLink -->
-    <ILLinkTasksVersion>0.1.6-prerelease.19567.1</ILLinkTasksVersion>
+    <ILLinkTasksVersion>0.1.6-prerelease.20114.2</ILLinkTasksVersion>
     <!-- Mono LLVM -->
     <runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>6.0.1-alpha.1.20078.4</runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMSdkVersion>
     <runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>6.0.1-alpha.1.20078.4</runtimelinuxx64MicrosoftNETCoreRuntimeMonoLLVMToolsVersion>
diff --git a/eng/illink.targets b/eng/illink.targets
index 59960f31aa19a7..ae2de5625865b8 100644
--- a/eng/illink.targets
+++ b/eng/illink.targets
@@ -10,7 +10,7 @@
   <!-- Inputs and outputs of ILLinkTrimAssembly -->
   <PropertyGroup>
     <ILLinkTasksDir>$([MSBuild]::NormalizeDirectory('$(PkgILLink_Tasks)', 'tools'))</ILLinkTasksDir>
-    <ILLinkTasksPath Condition="'$(ILLinkTasksPath)' == '' and '$(MSBuildRuntimeType)' == 'core'">$(ILLinkTasksDir)netcoreapp2.0/ILLink.Tasks.dll</ILLinkTasksPath>
+    <ILLinkTasksPath Condition="'$(ILLinkTasksPath)' == '' and '$(MSBuildRuntimeType)' == 'core'">$(ILLinkTasksDir)netcoreapp3.0/ILLink.Tasks.dll</ILLinkTasksPath>
     <ILLinkTasksPath Condition="'$(ILLinkTasksPath)' == '' and '$(MSBuildRuntimeType)' != 'core'">$(ILLinkTasksDir)$(NetFrameworkCurrent)/ILLink.Tasks.dll</ILLinkTasksPath>
     <ILLinkTrimAssemblyPath>$(IntermediateOutputPath)$(TargetName)$(TargetExt)</ILLinkTrimAssemblyPath>
     <ILLinkTrimAssemblySymbols>$(IntermediateOutputPath)$(TargetName).pdb</ILLinkTrimAssemblySymbols>
@@ -83,6 +83,8 @@
       <ILLinkArgs>$(ILLinkArgs) --skip-unresolved true</ILLinkArgs>
       <!-- keep interface implementations -->
       <ILLinkArgs>$(ILLinkArgs) --disable-opt unusedinterfaces</ILLinkArgs>
+      <!-- disable optimization to unblock dependencies bump -->
+      <ILLinkArgs>$(ILLinkArgs) --disable-opt ipconstprop</ILLinkArgs>
       <!-- keep PreserveDependencyAttribute unless a project explicitly disables it -->
       <ILLinkArgs Condition="'$(ILLinkKeepDepAttributes)' != 'false'">$(ILLinkArgs) --keep-dep-attributes true</ILLinkArgs>
     </PropertyGroup>
diff --git a/src/coreclr/src/System.Private.CoreLib/CreateRuntimeRootILLinkDescriptorFile.targets b/src/coreclr/src/System.Private.CoreLib/CreateRuntimeRootILLinkDescriptorFile.targets
index f64d3894770427..d06367c480c6f3 100644
--- a/src/coreclr/src/System.Private.CoreLib/CreateRuntimeRootILLinkDescriptorFile.targets
+++ b/src/coreclr/src/System.Private.CoreLib/CreateRuntimeRootILLinkDescriptorFile.targets
@@ -13,7 +13,7 @@
     <_ILLinkTrimXmlFilePath Condition=" '$(_ILLinkTrimXmlFilePath)' == '' ">$(MSBuildThisFileDirectory)ILLinkTrim.xml</_ILLinkTrimXmlFilePath>
     <_ILLinkTasksToolsDir>$(PkgILLink_Tasks)/tools</_ILLinkTasksToolsDir>
     <_ILLinkTasksDir>$(_ILLinkTasksToolsDir)/$(NetFrameworkCurrent)/</_ILLinkTasksDir>
-    <_ILLinkTasksDir Condition="'$(MSBuildRuntimeType)' == 'Core'">$(_ILLinkTasksToolsDir)/netcoreapp2.0/</_ILLinkTasksDir>
+    <_ILLinkTasksDir Condition="'$(MSBuildRuntimeType)' == 'Core'">$(_ILLinkTasksToolsDir)/netcoreapp3.0/</_ILLinkTasksDir>
   </PropertyGroup>
 
   <!--