diff --git a/NSF2SQL/NSF2SQL.csproj b/NSF2SQL/NSF2SQL.csproj
index 2263398..311318a 100644
--- a/NSF2SQL/NSF2SQL.csproj
+++ b/NSF2SQL/NSF2SQL.csproj
@@ -143,7 +143,7 @@
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     </PackageReference>
     <PackageReference Include="Google.Protobuf">
-      <Version>3.31.1</Version>
+      <Version>3.33.0</Version>
     </PackageReference>
     <PackageReference Include="interop.domino.dll">
       <Version>1.0.0</Version>