diff --git a/src/EdsDcfNet/EdsDcfNet.csproj b/src/EdsDcfNet/EdsDcfNet.csproj
index 5322a7e..43d2f84 100644
--- a/src/EdsDcfNet/EdsDcfNet.csproj
+++ b/src/EdsDcfNet/EdsDcfNet.csproj
@@ -30,7 +30,7 @@
 		  <PrivateAssets>all</PrivateAssets>
 		</PackageReference>
 		<PackageReference Include="Microsoft.SourceLink.GitHub" Version="10.0.*" PrivateAssets="All" />
-		<PackageReference Include="Polyfill" Version="10.3.0" PrivateAssets="all">
+		<PackageReference Include="Polyfill" Version="10.5.1" PrivateAssets="all">
 		  <IncludeAssets>compile; build; analyzers; contentfiles</IncludeAssets>
 		</PackageReference>
 	</ItemGroup>