diff --git a/Directory.Packages.props b/Directory.Packages.props
index 90a640e..7cd1b52 100644
--- a/Directory.Packages.props
+++ b/Directory.Packages.props
@@ -8,7 +8,7 @@
     <!-- Semantics runtime packages -->
     <PackageVersion Include="ktsu.PreciseNumber" Version="1.7.26" />
     <PackageVersion Include="ktsu.RoundTripStringJsonConverter" Version="1.0.38" />
-    <PackageVersion Include="Polyfill" Version="11.0.1" />
+    <PackageVersion Include="Polyfill" Version="11.0.2" />
     <PackageVersion Include="Microsoft.Bcl.AsyncInterfaces" Version="10.0.10" />
     <PackageVersion Include="System.Memory" Version="4.6.3" />
     <PackageVersion Include="System.Numerics.Vectors" Version="4.6.1" />
diff --git a/Semantics.SourceGenerators/Semantics.SourceGenerators.csproj b/Semantics.SourceGenerators/Semantics.SourceGenerators.csproj
index 45c4d41..f92f86a 100644
--- a/Semantics.SourceGenerators/Semantics.SourceGenerators.csproj
+++ b/Semantics.SourceGenerators/Semantics.SourceGenerators.csproj
@@ -22,6 +22,7 @@
     <PackageReference Include="ktsu.CodeBlocker" PrivateAssets="all" GeneratePathProperty="true" />
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" PrivateAssets="all" />
     <PackageReference Include="Microsoft.CodeAnalysis.Analyzers" PrivateAssets="all" />
+    <PackageReference Include="Polyfill" />
     <PackageReference Include="System.Text.Json" PrivateAssets="all" GeneratePathProperty="true" />
   </ItemGroup>