diff --git a/CMakeLists.txt b/CMakeLists.txt
index fe6400e..e33d5aa 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,7 @@ set(BINARY_NAME "mioc")
 set(CMAKE_CXX_STANDARD 11)
 
 project(${PROJECT_NAME}
-    VERSION 1.2.1
+    VERSION 1.2.3
     DESCRIPTION "A mini IoC implementation with C++"
     LANGUAGES CXX)
 
diff --git a/tests/AssignmentTest.cpp b/tests/AssignmentTest.cpp
index ebfae91..64c8b01 100644
--- a/tests/AssignmentTest.cpp
+++ b/tests/AssignmentTest.cpp
@@ -30,7 +30,7 @@ TEST_CASE("Assignment")
 
     // Move container.
     mioc::ServiceContainerPtr containerC = mioc::ServiceContainer::New();
-    *containerC = std::move(*containerA);
+    *containerC = std::move(*containerB);
     CHECK_EQ(containerC->Resolve<IA>()->ToString(), a1->ToString());
     CHECK_EQ(containerC->Resolve<IB>()->ToString(), b1->ToString());
     CHECK_EQ(containerC->Resolve<IC>(), nullptr);