diff --git a/src/Radical.Tests/Radical.Tests.csproj b/src/Radical.Tests/Radical.Tests.csproj
index 2f2359a4..7d5bea38 100644
--- a/src/Radical.Tests/Radical.Tests.csproj
+++ b/src/Radical.Tests/Radical.Tests.csproj
@@ -12,7 +12,7 @@
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
     </PackageReference>
     <PackageReference Include="FakeItEasy" Version="9.0.1" />
-    <PackageReference Include="MessagePack" Version="3.1.8" />
+    <PackageReference Include="MessagePack" Version="3.1.9" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.10.1" />
     <PackageReference Include="MSTest.TestAdapter" Version="4.4.1" />
     <PackageReference Include="MSTest.TestFramework" Version="4.4.1" />