diff --git a/src/PommaLabs.Thrower/PommaLabs.Thrower.csproj b/src/PommaLabs.Thrower/PommaLabs.Thrower.csproj
index 58dbc2c..2289fe8 100644
--- a/src/PommaLabs.Thrower/PommaLabs.Thrower.csproj
+++ b/src/PommaLabs.Thrower/PommaLabs.Thrower.csproj
@@ -33,6 +33,12 @@
     <None Remove="doc\**" />
   </ItemGroup>
 
+  <ItemGroup>
+    <PackageReference Include="HellBrick.Diagnostics" Version="2.0.0">
+      <PrivateAssets>All</PrivateAssets>
+    </PackageReference>
+  </ItemGroup>
+
   <PropertyGroup Condition=" '$(TargetFramework)' == 'netstandard1.0' ">
     <DefineConstants>$(DefineConstants);NETSTD10;LIBLOG_PUBLIC;LIBLOG_PORTABLE</DefineConstants>
   </PropertyGroup>