diff --git a/tests/SecureFix.Tests/SecureFix.Tests.csproj b/tests/SecureFix.Tests/SecureFix.Tests.csproj
index c4be16a..5d8a3da 100644
--- a/tests/SecureFix.Tests/SecureFix.Tests.csproj
+++ b/tests/SecureFix.Tests/SecureFix.Tests.csproj
@@ -11,7 +11,7 @@
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     <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="10.0.0" />
-    <PackageReference Include="Moq" Version="4.20.72" />
+    <PackageReference Include="Moq" Version="4.21.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.4" />
     <PackageReference Include="OpenAI" Version="2.13.0" />