diff --git a/source/Directory.Build.props b/source/Directory.Build.props
index 324a83c..004b679 100644
--- a/source/Directory.Build.props
+++ b/source/Directory.Build.props
@@ -21,7 +21,7 @@
   
   <ItemGroup>
     <PackageReference Include="DefaultCSharp" Version="14.0.1" PrivateAssets="all" />
-    <PackageReference Include="Polyfill" Version="9.10.0" PrivateAssets="all" />
+    <PackageReference Include="Polyfill" Version="9.13.0" PrivateAssets="all" />
   </ItemGroup>
 
 </Project>