diff --git a/src/NServiceBus.MicrosoftLogging/NServiceBus.MicrosoftLogging.csproj b/src/NServiceBus.MicrosoftLogging/NServiceBus.MicrosoftLogging.csproj
index 4f8dd602..1716cfc4 100644
--- a/src/NServiceBus.MicrosoftLogging/NServiceBus.MicrosoftLogging.csproj
+++ b/src/NServiceBus.MicrosoftLogging/NServiceBus.MicrosoftLogging.csproj
@@ -4,7 +4,7 @@
     <TargetFrameworks>net48;net7.0</TargetFrameworks>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Polyfill" Version="1.33.2" PrivateAssets="all" />
+    <PackageReference Include="Polyfill" Version="1.34.0" PrivateAssets="all" />
     <PackageReference Include="NServiceBus" Version="8.1.6" />
     <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="8.0.0" />
     <PackageReference Include="ProjectDefaults" Version="1.0.106" PrivateAssets="all" />