diff --git a/src/FunctionalStateMachine.Core/FunctionalStateMachine.Core.csproj b/src/FunctionalStateMachine.Core/FunctionalStateMachine.Core.csproj
index 76c719e..0477746 100644
--- a/src/FunctionalStateMachine.Core/FunctionalStateMachine.Core.csproj
+++ b/src/FunctionalStateMachine.Core/FunctionalStateMachine.Core.csproj
@@ -16,7 +16,7 @@
 
     <!-- Polyfills for C# 9+ features on netstandard2.0 -->
     <ItemGroup>
-        <PackageReference Include="PolySharp" Version="1.14.1" PrivateAssets="all" />
+        <PackageReference Include="PolySharp" Version="1.15.0" PrivateAssets="all" />
     </ItemGroup>
 
 </Project>