diff --git a/Refit.HttpClientFactory/Refit.HttpClientFactory.csproj b/Refit.HttpClientFactory/Refit.HttpClientFactory.csproj
index 8a1c5d839..7b536e22d 100644
--- a/Refit.HttpClientFactory/Refit.HttpClientFactory.csproj
+++ b/Refit.HttpClientFactory/Refit.HttpClientFactory.csproj
@@ -3,7 +3,7 @@
   <PropertyGroup>
     <Product>Refit HTTP Client Factory Extensions</Product>
     <Description>Refit HTTP Client Factory Extensions</Description>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFrameworks>net5.0;netcoreapp3.1;netstandard2.0</TargetFrameworks>
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
@@ -12,4 +12,8 @@
     <PackageReference Include="Microsoft.Extensions.Http" Version="5.0.0" />
   </ItemGroup>
 
+  <ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp3.1'">
+    <PackageReference Update="Microsoft.Extensions.Http" Version="3.1.11" />
+  </ItemGroup>
+
 </Project>