--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -46,7 +46,7 @@ if(COMMAND cmake_policy)
   cmake_policy(SET CMP0023 NEW)
 endif(COMMAND cmake_policy)
 
-set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
@@ -171,7 +171,7 @@ if(ENABLE_BOOST_STATIC_LIBS)
 else(ENABLE_BOOST_STATIC_LIBS)
   set(Boost_USE_STATIC_LIBS FALSE)
 endif(ENABLE_BOOST_STATIC_LIBS)
-find_package(Boost REQUIRED COMPONENTS filesystem system date_time locale)
+find_package(Boost REQUIRED)
 include_directories(SYSTEM ${Boost_INCLUDE_DIR})
 link_directories(${Boost_LIBRARY_DIRS})
 
@@ -927,7 +927,7 @@ if(WIN32)
 else()
   add_executable(supertux2 src/main.cpp)
 endif(WIN32)
-target_link_libraries(supertux2 supertux2_lib Boost::filesystem Boost::locale)
+target_link_libraries(supertux2 supertux2_lib)
 
 set_target_properties(supertux2_lib PROPERTIES OUTPUT_NAME supertux2_lib)
 set_target_properties(supertux2_lib PROPERTIES COMPILE_FLAGS "${SUPERTUX2_EXTRA_WARNING_FLAGS}")
--- a/src/supertux/main.cpp
+++ b/src/supertux/main.cpp
@@ -22,7 +22,7 @@
 
 #include <SDL_image.h>
 #include <SDL_ttf.h>
-#include <boost/filesystem.hpp>
+#include <filesystem>
 #include <boost/locale.hpp>
 #include <physfs.h>
 #include <tinygettext/log.hpp>
@@ -208,7 +208,7 @@ void PhysfsSubsystem::find_datadir() con
     {
       datadir = BUILD_DATA_DIR;
       // Add config dir for supplemental files
-      PHYSFS_mount(boost::filesystem::canonical(BUILD_CONFIG_DATA_DIR).string().c_str(), nullptr, 1);
+      PHYSFS_mount(std::filesystem::canonical(BUILD_CONFIG_DATA_DIR).string().c_str(), nullptr, 1);
     }
     else
     {
@@ -219,7 +219,7 @@ void PhysfsSubsystem::find_datadir() con
     }
   }
 
-  if (!PHYSFS_mount(boost::filesystem::canonical(datadir).string().c_str(), nullptr, 1))
+  if (!PHYSFS_mount(std::filesystem::canonical(datadir).string().c_str(), nullptr, 1))
   {
     log_warning << "Couldn't add '" << datadir << "' to physfs searchpath: " << PHYSFS_getLastErrorCode() << std::endl;
   }
@@ -263,20 +263,20 @@ std::string olduserdir = FileSystem::joi
 std::string olduserdir = FileSystem::join(physfs_userdir, "." PACKAGE_NAME);
 #endif
 if (FileSystem::is_directory(olduserdir)) {
-  boost::filesystem::path olduserpath(olduserdir);
-  boost::filesystem::path userpath(userdir);
+  std::filesystem::path olduserpath(olduserdir);
+  std::filesystem::path userpath(userdir);
 
-  boost::filesystem::directory_iterator end_itr;
+  std::filesystem::directory_iterator end_itr;
 
   bool success = true;
 
   // cycle through the directory
-  for (boost::filesystem::directory_iterator itr(olduserpath); itr != end_itr; ++itr) {
+  for (std::filesystem::directory_iterator itr(olduserpath); itr != end_itr; ++itr) {
   try
   {
-    boost::filesystem::rename(itr->path().string().c_str(), userpath / itr->path().filename());
+    std::filesystem::rename(itr->path().string().c_str(), userpath / itr->path().filename());
   }
-  catch (const boost::filesystem::filesystem_error& err)
+  catch (const std::filesystem::filesystem_error& err)
   {
     success = false;
     log_warning << "Failed to move contents of config directory: " << err.what() << std::endl;
@@ -285,9 +285,9 @@ if (FileSystem::is_directory(olduserdir)
   if (success) {
     try
     {
-      boost::filesystem::remove_all(olduserpath);
+      std::filesystem::remove_all(olduserpath);
     }
-    catch (const boost::filesystem::filesystem_error& err)
+    catch (const std::filesystem::filesystem_error& err)
     {
       success = false;
       log_warning << "Failed to remove old config directory: " << err.what();
@@ -610,8 +610,8 @@ Main::run(int argc, char** argv)
   try
   {
     std::locale::global(boost::locale::generator().generate(""));
-    // Make boost.filesystem use it
-    boost::filesystem::path::imbue(std::locale());
+    // Make std.filesystem use it
+    std::filesystem::path::imbue(std::locale());
   }
   catch(const std::runtime_error& err)
   {
--- a/src/util/file_system.cpp
+++ b/src/util/file_system.cpp
@@ -16,7 +16,7 @@
 
 #include "util/file_system.hpp"
 
-#include <boost/filesystem.hpp>
+#include <filesystem>
 #include <boost/version.hpp>
 #include <sstream>
 #include <stdexcept>
@@ -38,14 +38,14 @@
 #include "util/log.hpp"
 #include "util/string_util.hpp"
 
-namespace fs = boost::filesystem;
+namespace fs = std::filesystem;
 
 namespace FileSystem {
 
 bool exists(const std::string& path)
 {
   fs::path location(path);
-  boost::system::error_code ec;
+  std::error_code ec;
 
   // If we get an error (such as "Permission denied"), then ignore it
   // and pretend that the path doesn't exist.