diff --git a/src/DateTimeRoutines/DateTimeRoutines.csproj b/src/DateTimeRoutines/DateTimeRoutines.csproj
index da38696fd..a11689f84 100644
--- a/src/DateTimeRoutines/DateTimeRoutines.csproj
+++ b/src/DateTimeRoutines/DateTimeRoutines.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.5;net452</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;net452</TargetFrameworks>
   </PropertyGroup>
 
 </Project>