diff --git a/pe-packer/pe-packer.vcxproj b/pe-packer/pe-packer.vcxproj
index b1473c7..7983d47 100644
--- a/pe-packer/pe-packer.vcxproj
+++ b/pe-packer/pe-packer.vcxproj
@@ -65,7 +65,7 @@
       <ConformanceMode>true</ConformanceMode>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <LanguageStandard>stdcpp14</LanguageStandard>
+      <LanguageStandard>stdcpp20</LanguageStandard>
     </ClCompile>
     <Link>
       <SubSystem>Console</SubSystem>
diff --git a/pe-packer/pe_lib/pe_properties.h b/pe-packer/pe_lib/pe_properties.h
index b10d803..0ee65c0 100644
--- a/pe-packer/pe_lib/pe_properties.h
+++ b/pe-packer/pe_lib/pe_properties.h
@@ -7,7 +7,7 @@ namespace pe_bliss
 class pe_properties
 {
 public: //Constructors
-	virtual std::auto_ptr<pe_properties> duplicate() const = 0;
+	virtual std::unique_ptr<pe_properties> duplicate() const = 0;
 	
 	//Fills properly PE structures
 	virtual void create_pe(uint32_t section_alignment, uint16_t subsystem) = 0;
diff --git a/pe-packer/pe_lib/pe_properties_generic.cpp b/pe-packer/pe_lib/pe_properties_generic.cpp
index 3b1dadd..02075cd 100644
--- a/pe-packer/pe_lib/pe_properties_generic.cpp
+++ b/pe-packer/pe_lib/pe_properties_generic.cpp
@@ -9,9 +9,9 @@ using namespace pe_win;
 	
 //Constructor
 template<typename PEClassType>
-std::auto_ptr<pe_properties> pe_properties_generic<PEClassType>::duplicate() const
+std::unique_ptr<pe_properties> pe_properties_generic<PEClassType>::duplicate() const
 {
-	return std::auto_ptr<pe_properties>(new pe_properties_generic<PEClassType>(*this));
+	return std::unique_ptr<pe_properties>(new pe_properties_generic<PEClassType>(*this));
 }
 
 //Fills properly PE structures
diff --git a/pe-packer/pe_lib/pe_properties_generic.h b/pe-packer/pe_lib/pe_properties_generic.h
index 2b4a0e3..9b53ec2 100644
--- a/pe-packer/pe_lib/pe_properties_generic.h
+++ b/pe-packer/pe_lib/pe_properties_generic.h
@@ -30,7 +30,7 @@ template<typename PEClassType>
 class pe_properties_generic : public pe_properties
 {
 public: //Constructor
-	virtual std::auto_ptr<pe_properties> duplicate() const;
+	virtual std::unique_ptr<pe_properties> duplicate() const;
 
 	//Fills properly PE structures
 	virtual void create_pe(uint32_t section_alignment, uint16_t subsystem);
diff --git a/pe-packer/pe_lib/resource_cursor_icon_writer.cpp b/pe-packer/pe_lib/resource_cursor_icon_writer.cpp
index ce52c6c..44bb571 100644
--- a/pe-packer/pe_lib/resource_cursor_icon_writer.cpp
+++ b/pe-packer/pe_lib/resource_cursor_icon_writer.cpp
@@ -271,7 +271,7 @@ void resource_cursor_icon_writer::add_icon(const std::string& icon_file, const s
 {
 	resource_directory_entry new_icon_group_entry;
 	new_icon_group_entry.set_name(icon_group_name);
-	std::auto_ptr<resource_data_info> data_info;
+	std::unique_ptr<resource_data_info> data_info;
 
 	try
 	{
@@ -288,7 +288,7 @@ void resource_cursor_icon_writer::add_icon(const std::string& icon_file, uint32_
 {
 	resource_directory_entry new_icon_group_entry;
 	new_icon_group_entry.set_id(icon_group_id);
-	std::auto_ptr<resource_data_info> data_info;
+	std::unique_ptr<resource_data_info> data_info;
 
 	try
 	{
@@ -310,7 +310,7 @@ void resource_cursor_icon_writer::add_cursor(const std::string& cursor_file, con
 {
 	resource_directory_entry new_cursor_group_entry;
 	new_cursor_group_entry.set_name(cursor_group_name);
-	std::auto_ptr<resource_data_info> data_info;
+	std::unique_ptr<resource_data_info> data_info;
 
 	try
 	{
@@ -327,7 +327,7 @@ void resource_cursor_icon_writer::add_cursor(const std::string& cursor_file, uin
 {
 	resource_directory_entry new_cursor_group_entry;
 	new_cursor_group_entry.set_id(cursor_group_id);
-	std::auto_ptr<resource_data_info> data_info;
+	std::unique_ptr<resource_data_info> data_info;
 
 	try
 	{