diff --git a/src/Polly.Contrib.WaitAndRetry/Polly.Contrib.WaitAndRetry.csproj b/src/Polly.Contrib.WaitAndRetry/Polly.Contrib.WaitAndRetry.csproj
index 8c03863..920b82e 100644
--- a/src/Polly.Contrib.WaitAndRetry/Polly.Contrib.WaitAndRetry.csproj
+++ b/src/Polly.Contrib.WaitAndRetry/Polly.Contrib.WaitAndRetry.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>netstandard1.1;netstandard2.0;net461;net472</TargetFrameworks>
+    <TargetFrameworks>netstandard1.1;netstandard2.0;net461;net47;net472</TargetFrameworks>
     <LangVersion>8.0</LangVersion>
     <AssemblyName>Polly.Contrib.WaitAndRetry</AssemblyName>
     <RootNamespace>Polly.Contrib.WaitAndRetry</RootNamespace>