diff --git a/PrusaSlicer-boost1.79.patch b/PrusaSlicer-boost1.79.patch
index 25c78b4..f32d1cd 100644
--- a/PrusaSlicer-boost1.79.patch
+++ b/PrusaSlicer-boost1.79.patch
@@ -1,31 +1,112 @@
-Index: PrusaSlicer-version_2.4.1/src/hints/HintsToPot.cpp
-===================================================================
---- PrusaSlicer-version_2.4.1.orig/src/hints/HintsToPot.cpp
-+++ PrusaSlicer-version_2.4.1/src/hints/HintsToPot.cpp
-@@ -1,4 +1,5 @@
- #include <iostream>
-+#include <fstream>
- #include <vector>
- #include <string>
- #include <boost/filesystem.hpp>
-@@ -9,7 +10,7 @@
+From 408e56f0390f20aaf793e0aa0c70c4d9544401d4 Mon Sep 17 00:00:00 2001
+From: Vojtech Bubnik <bubnikv@gmail.com>
+Date: Mon, 25 Apr 2022 08:33:48 +0200
+Subject: [PATCH] Fix of Boost 1.79 deprecated boost::filesystem::ofstream
+ #8238 Replacing boost::filesystem::fstream with boost::nowide::fstream
+ variants with the unfortunate cost of string path conversion on Windows from
+ 16 bits to UTF8 and back to 16 bits.
+
+Unfortunately we cannot use std::filesystem yet as it is missing
+on older MACs and because the interface is crooked minefield on Windows
+see https://github.com/microsoft/STL/issues/909
+---
+ src/hints/HintsToPot.cpp            | 2 +-
+ src/libslic3r/Preset.cpp            | 2 +-
+ src/slic3r/GUI/HintNotification.cpp | 8 +++++---
+ 3 files changed, 7 insertions(+), 5 deletions(-)
+
+diff --git a/src/hints/HintsToPot.cpp b/src/hints/HintsToPot.cpp
+index 7c8029cdeb..4791f0612f 100644
+--- a/src/hints/HintsToPot.cpp
++++ b/src/hints/HintsToPot.cpp
+@@ -9,7 +9,7 @@
  
  bool write_to_pot(boost::filesystem::path path, const std::vector<std::pair<std::string, std::string>>& data)
  {
 -	boost::filesystem::ofstream file(std::move(path), std::ios_base::app);
-+	std::ofstream file(std::move(path.string()), std::ios_base::app);
++	boost::nowide::ofstream file(path.string(), std::ios_base::app);
  	for (const auto& element : data)
  	{
  		//Example of .pot element 
-Index: PrusaSlicer-version_2.4.1/tests/fff_print/test_data.cpp
-===================================================================
---- PrusaSlicer-version_2.4.1.orig/tests/fff_print/test_data.cpp
-+++ PrusaSlicer-version_2.4.1/tests/fff_print/test_data.cpp
-@@ -9,6 +9,7 @@
+diff --git a/src/libslic3r/Preset.cpp b/src/libslic3r/Preset.cpp
+index f3a1c15b3e..f171cb14dd 100644
+--- a/src/libslic3r/Preset.cpp
++++ b/src/libslic3r/Preset.cpp
+@@ -84,7 +84,7 @@ ConfigFileType guess_config_file_type(const ptree &tree)
+ VendorProfile VendorProfile::from_ini(const boost::filesystem::path &path, bool load_all)
+ {
+     ptree tree;
+-    boost::filesystem::ifstream ifs(path);
++    boost::nowide::ifstream ifs(path.string());
+     boost::property_tree::read_ini(ifs, tree);
+     return VendorProfile::from_ini(tree, path, load_all);
+ }
+diff --git a/src/slic3r/GUI/HintNotification.cpp b/src/slic3r/GUI/HintNotification.cpp
+index 93e0fb3259..820b74eedb 100644
+--- a/src/slic3r/GUI/HintNotification.cpp
++++ b/src/slic3r/GUI/HintNotification.cpp
+@@ -14,12 +14,14 @@
+ #include "libslic3r/Config.hpp"
+ #include "libslic3r/PrintConfig.hpp"
  
- #include <cstdlib>
++#include <map>
++
+ #include <boost/algorithm/string/replace.hpp>
+ #include <boost/filesystem.hpp>
+ #include <boost/nowide/fstream.hpp>
+ #include <boost/log/trivial.hpp>
+ #include <boost/property_tree/ini_parser.hpp>
+-#include <map>
++
+ #include <cereal/archives/binary.hpp>
+ #include <cereal/types/string.hpp>
+ #include <cereal/types/vector.hpp>
+@@ -65,7 +67,7 @@ inline void push_style_color(ImGuiCol idx, const ImVec4& col, bool fading_out, f
+ 
+ void write_used_binary(const std::vector<std::string>& ids)
+ {
+-	boost::filesystem::ofstream file((boost::filesystem::path(data_dir()) / "cache" / "hints.cereal"), std::ios::binary);
++	boost::nowide::ofstream file((boost::filesystem::path(data_dir()) / "cache" / "hints.cereal").string(), std::ios::binary);
+ 	cereal::BinaryOutputArchive archive(file);
+ 		HintsCerealData cd { ids };
+ 	try
+@@ -84,7 +86,7 @@ void read_used_binary(std::vector<std::string>& ids)
+ 		BOOST_LOG_TRIVIAL(warning) << "Failed to load to hints.cereal. File does not exists. " << path.string();
+ 		return;
+ 	}
+-	boost::filesystem::ifstream file(path);
++	boost::nowide::ifstream file(path.string());
+ 	cereal::BinaryInputArchive archive(file);
+ 	HintsCerealData cd;
+ 	try
+From 926ae0471800abd1e5335e251a5934570eb8f6ff Mon Sep 17 00:00:00 2001
+From: Vojtech Bubnik <bubnikv@gmail.com>
+Date: Mon, 25 Apr 2022 11:32:03 +0200
+Subject: [PATCH] Follow-up to 408e56f0390f20aaf793e0aa0c70c4d9544401d4 Fixing
+ compilation of tests on latest GCC/boost
+
+---
+ tests/fff_print/test_data.cpp | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/tests/fff_print/test_data.cpp b/tests/fff_print/test_data.cpp
+index 32e31c264c..f7077007db 100644
+--- a/tests/fff_print/test_data.cpp
++++ b/tests/fff_print/test_data.cpp
+@@ -11,6 +11,7 @@
  #include <string>
-+#include <fstream>
  
  #include <boost/nowide/cstdio.hpp>
++#include <boost/nowide/fstream.hpp>
  #include <boost/filesystem.hpp>
+ #include <libslic3r/ModelArrange.hpp>
+ 
+@@ -286,7 +287,7 @@ std::string gcode(Print & print)
+     print.set_status_silent();
+     print.process();
+     print.export_gcode(temp.string(), nullptr, nullptr);
+-    std::ifstream t(temp.string());
++    boost::nowide::ifstream t(temp.string());
+ 	std::string str((std::istreambuf_iterator<char>(t)), std::istreambuf_iterator<char>());
+ 	boost::nowide::remove(temp.string().c_str());
+ 	return str;
diff --git a/PrusaSlicer.changes b/PrusaSlicer.changes
index d0b912c..27e8898 100644
--- a/PrusaSlicer.changes
+++ b/PrusaSlicer.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Mon Apr 25 11:27:58 UTC 2022 - Ben Greiner <code@bnavigator.de>
+
+- Refresh PrusaSlicer-boost1.79.patch with upstream's fix
+  * gh#prusa3d/PrusaSlicer#8238
+
 -------------------------------------------------------------------
 Sun Apr 24 09:26:22 UTC 2022 - Ben Greiner <code@bnavigator.de>