diff --git a/src/Verify.Quibble/Verify.Quibble.csproj b/src/Verify.Quibble/Verify.Quibble.csproj
index 31a155c..9ad880d 100644
--- a/src/Verify.Quibble/Verify.Quibble.csproj
+++ b/src/Verify.Quibble/Verify.Quibble.csproj
@@ -4,7 +4,7 @@
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Argon" Version="0.9.0" />
-    <PackageReference Include="Polyfill" Version="1.27.2" PrivateAssets="all" />
+    <PackageReference Include="Polyfill" Version="1.28.0" PrivateAssets="all" />
     <PackageReference Include="Quibble" Version="0.3.1" />
     <PackageReference Include="Verify" Version="21.1.3" />
     <PackageReference Include="ProjectDefaults" Version="1.0.97" PrivateAssets="all" />