diff --git a/src/DtronixModelTests/DtronixModelTests.csproj b/src/DtronixModelTests/DtronixModelTests.csproj
index f90cb77..d898e63 100644
--- a/src/DtronixModelTests/DtronixModelTests.csproj
+++ b/src/DtronixModelTests/DtronixModelTests.csproj
@@ -14,7 +14,7 @@
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   <ItemGroup>
-    <PackageReference Include="MessagePack" Version="2.2.85" />
+    <PackageReference Include="MessagePack" Version="2.5.187" />
     <PackageReference Include="nunit" Version="3.13.1" />
     <PackageReference Include="NUnit3TestAdapter" Version="4.0.0-alpha.1" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.1" />