diff --git a/tests/UnitTests/UnitTests.csproj b/tests/UnitTests/UnitTests.csproj
index b53a14c..7096620 100644
--- a/tests/UnitTests/UnitTests.csproj
+++ b/tests/UnitTests/UnitTests.csproj
@@ -8,7 +8,7 @@
 
   <ItemGroup>
     <PackageReference Include="Fermentation.Kinetic.Models" Version="2.0.5" />
-    <PackageReference Include="FluentAssertions" Version="6.4.0" />
+    <PackageReference Include="FluentAssertions" Version="6.6.0" />
     <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.0.0" />
     <PackageReference Include="xunit" Version="2.4.1" />
     <PackageReference Include="xunit.analyzers" Version="0.10.0" />