diff --git a/DecSm.Extensions.Hosting.Tests/DecSm.Extensions.Hosting.Tests.csproj b/DecSm.Extensions.Hosting.Tests/DecSm.Extensions.Hosting.Tests.csproj
index f304caa..f759c96 100644
--- a/DecSm.Extensions.Hosting.Tests/DecSm.Extensions.Hosting.Tests.csproj
+++ b/DecSm.Extensions.Hosting.Tests/DecSm.Extensions.Hosting.Tests.csproj
@@ -24,7 +24,7 @@
 
   <!--  .NET Framework Packages-->
   <ItemGroup Condition="'$(TargetFramework)' == 'net48'">
-    <PackageReference Include="Polyfill" Version="10.1.1">
+    <PackageReference Include="Polyfill" Version="10.3.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>