diff --git a/Tests/UnitTests/Extensions.cs b/Tests/UnitTests/Extensions.cs
index faa6f70..1d2e500 100644
--- a/Tests/UnitTests/Extensions.cs
+++ b/Tests/UnitTests/Extensions.cs
@@ -1,4 +1,6 @@
-using Shogi.Domains.ValueObjects;
+using Shogi.BackEnd.Domains.ValueObjects;
+using Shogi.BackEnd.Domains.ValueObjects.Pieces;
+using Shogi.BackEnd.Domains.ValueObjects.Rules;
 using System;
 using System.Text;
 
diff --git a/Tests/UnitTests/NotationShould.cs b/Tests/UnitTests/NotationShould.cs
index 2d213fc..41b64f1 100644
--- a/Tests/UnitTests/NotationShould.cs
+++ b/Tests/UnitTests/NotationShould.cs
@@ -1,4 +1,4 @@
-using Shogi.Domains.YetToBeAssimilatedIntoDDD;
+using Shogi.BackEnd.Domains.YetToBeAssimilatedIntoDDD;
 using System.Numerics;
 
 namespace UnitTests;
diff --git a/Tests/UnitTests/RookShould.cs b/Tests/UnitTests/RookShould.cs
index 89ce99a..a759ef5 100644
--- a/Tests/UnitTests/RookShould.cs
+++ b/Tests/UnitTests/RookShould.cs
@@ -1,5 +1,6 @@
-using Shogi.Domains.ValueObjects;
-using Shogi.Domains.ValueObjects.Movement;
+using Shogi.BackEnd.Domains.ValueObjects;
+using Shogi.BackEnd.Domains.ValueObjects.Movement;
+using Shogi.BackEnd.Domains.ValueObjects.Pieces;
 using System.Linq;
 using System.Numerics;
 
diff --git a/Tests/UnitTests/ShogiBoardStateShould.cs b/Tests/UnitTests/ShogiBoardStateShould.cs
index 9541e75..404e01d 100644
--- a/Tests/UnitTests/ShogiBoardStateShould.cs
+++ b/Tests/UnitTests/ShogiBoardStateShould.cs
@@ -1,4 +1,4 @@
-using Shogi.Domains.ValueObjects;
+using Shogi.BackEnd.Domains.ValueObjects;
 
 namespace UnitTests;
 
diff --git a/Tests/UnitTests/ShogiShould.cs b/Tests/UnitTests/ShogiShould.cs
index 1fd21de..0ea9fa2 100644
--- a/Tests/UnitTests/ShogiShould.cs
+++ b/Tests/UnitTests/ShogiShould.cs
@@ -1,4 +1,5 @@
-using Shogi.Domains.ValueObjects;
+using Shogi.BackEnd.Domains.ValueObjects;
+using Shogi.BackEnd.Domains.ValueObjects.Rules;
 
 namespace UnitTests;