diff --git a/Directory.Packages.props b/Directory.Packages.props
index cb6674e..319f629 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -8,7 +8,7 @@
     <PackageVersion Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.3.2" />
     <PackageVersion Include="Microsoft.Testing.Extensions.TrxReport" Version="2.0.2" />
     <PackageVersion Include="ktsu.RoundTripStringJsonConverter" Version="1.0.10" />
-    <PackageVersion Include="Polyfill" Version="9.8.1" />
+    <PackageVersion Include="Polyfill" Version="9.9.0" />
     <PackageVersion Include="System.Memory" Version="4.6.3" />
   </ItemGroup>
 </Project>
\ No newline at end of file