diff --git a/Benchmark/Benchmark.csproj b/Benchmark/Benchmark.csproj
index b5b5a81..4d6ccb6 100644
--- a/Benchmark/Benchmark.csproj
+++ b/Benchmark/Benchmark.csproj
@@ -21,7 +21,7 @@
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     <PackageReference Include="NetSerializer" Version="4.1.1" />
-    <PackageReference Include="protobuf-net" Version="2.4.6" />
+    <PackageReference Include="protobuf-net" Version="3.1.0" />
     <PackageReference Include="ZeroFormatter" Version="1.6.4" />
   </ItemGroup>