diff --git a/src/RevitAddin.csproj b/src/RevitAddin.csproj
index 45ee3a7..f4be848 100644
--- a/src/RevitAddin.csproj
+++ b/src/RevitAddin.csproj
@@ -171,7 +171,7 @@
     <ReplaceFileText Condition="$(Configuration.Contains('Debug'))" InputFilename="@(AddinManifest)" OutputFilename="@(AddinManifest)" MatchExpression="Assembly&gt;(.*?)&lt;" ReplacementText="Assembly&gt;$([System.IO.Path]::GetFullPath('$(OutputPath)'))$(AssemblyName).dll&lt;" />
   </Target>
 
-  <UsingTask TaskName="ReplaceFileText" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll">
+  <UsingTask Condition="'$(MSBuildRuntimeType)' == 'Full'" TaskName="ReplaceFileText" TaskFactory="CodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.v4.0.dll">
     <ParameterGroup>
       <InputFilename ParameterType="System.String" Required="true" />
       <OutputFilename ParameterType="System.String" Required="true" />
@@ -191,6 +191,25 @@
     </Task>
   </UsingTask>
 
+  <UsingTask Condition="'$(MSBuildRuntimeType)' == 'Core'" TaskName="ReplaceFileText" TaskFactory="RoslynCodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.Core.dll">
+    <ParameterGroup>
+      <InputFilename ParameterType="System.String" Required="true" />
+      <OutputFilename ParameterType="System.String" Required="true" />
+      <MatchExpression ParameterType="System.String" Required="true" />
+      <ReplacementText ParameterType="System.String" Required="true" />
+    </ParameterGroup>
+    <Task>
+      <Using Namespace="System" />
+      <Using Namespace="System.IO" />
+      <Using Namespace="System.Text.RegularExpressions" />
+      <Code Type="Fragment" Language="cs">
+        <![CDATA[
+              File.WriteAllText(OutputFilename,Regex.Replace(File.ReadAllText(InputFilename),MatchExpression,ReplacementText));
+        ]]>
+      </Code>
+    </Task>
+  </UsingTask>
+
   <Target Name="CopyAddinsToAppData" AfterTargets="CreateAddinManifest" Condition="$(Configuration.Contains('Debug'))">
     <!-- Copy newly compiled add-in files to AppData folder (before starting the debugger) -->
     <Message Importance="high" Text="Copying addin file into Revit Addin folder" />