diff --git a/CommonLibF4/include/RE/msvc/memory.h b/CommonLibF4/include/RE/msvc/memory.h
index 083d178c..f22c87bc 100644
--- a/CommonLibF4/include/RE/msvc/memory.h
+++ b/CommonLibF4/include/RE/msvc/memory.h
@@ -270,7 +270,7 @@ namespace RE::msvc
 
 		// 3c
 		unique_ptr(pointer a_ptr, const deleter_type& a_dtor) noexcept  //
-			requires((std::is_lvalue_reference<deleter_type> &&
+			requires((std::is_lvalue_reference_v<deleter_type> &&
 					  std::is_const_v<deleter_type>)) :
 			super(a_ptr, a_dtor)
 		{}
@@ -484,7 +484,7 @@ namespace RE::msvc
 		// 3c
 		template <class U>
 		unique_ptr(U a_ptr, const deleter_type& a_dtor) noexcept  //
-			requires((std::is_lvalue_reference<deleter_type> &&
+			requires((std::is_lvalue_reference_v<deleter_type> &&
 					  std::is_const_v<deleter_type> &&
 					  detail::unique_ptr_array_convertible<U, unique_ptr>)) :
 			super(a_ptr, a_dtor)