diff --git a/dotnet/Cucumber.HtmlFormatter/Cucumber.HtmlFormatter.csproj b/dotnet/Cucumber.HtmlFormatter/Cucumber.HtmlFormatter.csproj
index 8e072049..8db32743 100644
--- a/dotnet/Cucumber.HtmlFormatter/Cucumber.HtmlFormatter.csproj
+++ b/dotnet/Cucumber.HtmlFormatter/Cucumber.HtmlFormatter.csproj
@@ -23,7 +23,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Cucumber.Messages" Version="33.0.4"/>
+    <PackageReference Include="Cucumber.Messages" Version="34.0.1"/>
   </ItemGroup>
 
   <PropertyGroup Label="Package Properties">