diff --git a/src/DayPhaseIndicator.Tests/DayPhaseIndicator.Tests.csproj b/src/DayPhaseIndicator.Tests/DayPhaseIndicator.Tests.csproj
index f7762cb..8f3e316 100644
--- a/src/DayPhaseIndicator.Tests/DayPhaseIndicator.Tests.csproj
+++ b/src/DayPhaseIndicator.Tests/DayPhaseIndicator.Tests.csproj
@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="TUnit" Version="1.43.41" />
+    <PackageReference Include="TUnit" Version="1.47.0" />
   </ItemGroup>
 
   <ItemGroup>