diff --git a/src/Refitter.SourceGenerator.Tests/Refitter.SourceGenerator.Tests.csproj b/src/Refitter.SourceGenerator.Tests/Refitter.SourceGenerator.Tests.csproj
index f4b6f48bd..394f6291f 100644
--- a/src/Refitter.SourceGenerator.Tests/Refitter.SourceGenerator.Tests.csproj
+++ b/src/Refitter.SourceGenerator.Tests/Refitter.SourceGenerator.Tests.csproj
@@ -14,7 +14,7 @@
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         <PackageReference Include="FluentAssertions" Version="7.2.0" />
         <PackageReference Include="System.Text.Json" Version="10.0.0" />
-        <PackageReference Include="TUnit" Version="1.5.0" />
+        <PackageReference Include="TUnit" Version="1.5.6" />
         <PackageReference Include="coverlet.collector" Version="6.0.4">
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
             <PrivateAssets>all</PrivateAssets>
diff --git a/src/Refitter.Tests/Refitter.Tests.csproj b/src/Refitter.Tests/Refitter.Tests.csproj
index 624667ffa..7fd0e1816 100644
--- a/src/Refitter.Tests/Refitter.Tests.csproj
+++ b/src/Refitter.Tests/Refitter.Tests.csproj
@@ -20,7 +20,7 @@
     <ItemGroup>
         <PackageReference Include="FluentAssertions" Version="7.2.0" />
         <PackageReference Include="System.Text.Json" Version="10.0.0" />
-        <PackageReference Include="TUnit" Version="1.5.0" />
+        <PackageReference Include="TUnit" Version="1.5.6" />
         <PackageReference Include="coverlet.collector" Version="6.0.4">
             <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
             <PrivateAssets>all</PrivateAssets>