diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index 5a7a2d3..f523262 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -20,7 +20,7 @@
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
-    <PackageReference Include="Polyfill" Version="10.7.0" Condition="!Exists('packages.config')">
+    <PackageReference Include="Polyfill" Version="10.8.0" Condition="!Exists('packages.config')">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
diff --git a/tests/Directory.Build.props b/tests/Directory.Build.props
index 87153a9..9240cf6 100644
--- a/tests/Directory.Build.props
+++ b/tests/Directory.Build.props
@@ -16,7 +16,7 @@
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.6.0" />
     <PackageReference Include="Shouldly" Version="4.*" />
     <PackageReference Include="TUnit" Version="1.*" />
-    <PackageReference Include="Polyfill" Version="10.7.0">
+    <PackageReference Include="Polyfill" Version="10.8.0">
       <PrivateAssets>all</PrivateAssets>
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>