diff --git a/Directory.Packages.props b/Directory.Packages.props
index 9c39a72..2b4c66c 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -63,7 +63,7 @@
 
     <!-- Development References -->
     <ItemGroup>
-        <GlobalPackageReference Include="Polyfill" Version="9.9.0"/>
+        <GlobalPackageReference Include="Polyfill" Version="9.18.0"/>
     </ItemGroup>
 
 </Project>
\ No newline at end of file