diff --git a/Directory.Packages.props b/Directory.Packages.props
index 88ea279..e2f8526 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -16,7 +16,7 @@
     <PackageVersion Include="coverlet.msbuild" Version="6.0.2" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
     <PackageVersion Include="NetEvolve.Extensions.XUnit" Version="2.2.111" />
-    <PackageVersion Include="Polyfill" Version="6.5.0" />
+    <PackageVersion Include="Polyfill" Version="6.6.3" />
     <PackageVersion Include="xunit" Version="2.9.0" />
   </ItemGroup>