diff --git a/src/slic3r/GUI/ReleaseNote.cpp b/src/slic3r/GUI/ReleaseNote.cpp
index 7116995a02..f36c488bae 100644
--- a/src/slic3r/GUI/ReleaseNote.cpp
+++ b/src/slic3r/GUI/ReleaseNote.cpp
@@ -79,7 +79,7 @@ void ReleaseNoteDialog::on_dpi_changed(const wxRect &suggested_rect)
 {
 }
 
-void ReleaseNoteDialog::update_release_note(std::string release_note, std::string version) 
+void ReleaseNoteDialog::update_release_note(wxString release_note, std::string version) 
 { 
     m_text_up_info->SetLabel(wxString::Format("version %s update information :", version));
     wxBoxSizer * sizer_text_release_note = new wxBoxSizer(wxVERTICAL);
diff --git a/src/slic3r/GUI/ReleaseNote.hpp b/src/slic3r/GUI/ReleaseNote.hpp
index 6dc53abbba..1e0945f812 100644
--- a/src/slic3r/GUI/ReleaseNote.hpp
+++ b/src/slic3r/GUI/ReleaseNote.hpp
@@ -43,7 +43,7 @@ public:
     ~ReleaseNoteDialog();
 
     void on_dpi_changed(const wxRect &suggested_rect) override;
-    void update_release_note(std::string release_note, std::string version);
+    void update_release_note(wxString release_note, std::string version);
 
     wxStaticText *    m_text_up_info{nullptr};
     wxScrolledWindow *m_scrollwindw_release_note {nullptr};
diff --git a/src/slic3r/GUI/UpgradePanel.cpp b/src/slic3r/GUI/UpgradePanel.cpp
index 0cfa9ac80b..7d19dd934e 100644
--- a/src/slic3r/GUI/UpgradePanel.cpp
+++ b/src/slic3r/GUI/UpgradePanel.cpp
@@ -519,18 +519,18 @@ void MachineInfoPanel::on_show_release_note(wxMouseEvent &event)
     if (!dev) return;
 
 
-    std::string next_version_release_note = "";
-    std::string now_version_release_note  = "";
+    wxString next_version_release_note;
+    wxString now_version_release_note;
     std::string version_number            = "";
 
     for (auto iter : m_obj->firmware_list) {
         if (iter.version == m_obj->ota_new_version_number) {
             version_number            = m_obj->ota_new_version_number;
-            next_version_release_note = iter.description;
+            next_version_release_note = wxString::FromUTF8(iter.description);
         }
         if (iter.version == m_obj->get_ota_version()) { 
             version_number           = m_obj->get_ota_version();
-            now_version_release_note = iter.description;
+            now_version_release_note = wxString::FromUTF8(iter.description);
         }
     }