diff --git a/playground/csharp/Performances/Performances.csproj b/playground/csharp/Performances/Performances.csproj
index e9e89675ebe..f8e31db0feb 100644
--- a/playground/csharp/Performances/Performances.csproj
+++ b/playground/csharp/Performances/Performances.csproj
@@ -13,7 +13,7 @@
     </ItemGroup>
 
     <ItemGroup>
-      <PackageReference Include="WireMock.Net" Version="1.8.1" />
+      <PackageReference Include="WireMock.Net" Version="1.8.4" />
     </ItemGroup>
 
     <ItemGroup>