diff --git a/invesalius/gui/dialogs.py b/invesalius/gui/dialogs.py
index f297b23..58034c7 100644
--- a/invesalius/gui/dialogs.py
+++ b/invesalius/gui/dialogs.py
@@ -215,7 +215,7 @@ def ShowOpenProjectDialog():
     dlg = wx.FileDialog(None, message=_("Open InVesalius 3 project..."),
                         defaultDir="",
                         defaultFile="", wildcard=WILDCARD_OPEN,
-                        style=wx.OPEN|wx.CHANGE_DIR)
+                        style=wx.FD_OPEN|wx.FD_CHANGE_DIR)
 
     # inv3 filter is default
     dlg.SetFilterIndex(0)
@@ -243,7 +243,7 @@ def ShowOpenAnalyzeDialog():
     dlg = wx.FileDialog(None, message=_("Open Analyze file"),
                         defaultDir="",
                         defaultFile="", wildcard=WILDCARD_ANALYZE,
-                        style=wx.OPEN|wx.CHANGE_DIR)
+                        style=wx.FD_OPEN|wx.FD_CHANGE_DIR)
 
     # inv3 filter is default
     dlg.SetFilterIndex(0)
@@ -313,7 +313,7 @@ def ShowSaveAsProjectDialog(default_filename=None):
                         "", # last used directory
                         default_filename,
                         _("InVesalius project (*.inv3)|*.inv3"),
-                        wx.SAVE|wx.OVERWRITE_PROMPT)
+                        wx.FD_SAVE|wx.FD_OVERWRITE_PROMPT)
     #dlg.SetFilterIndex(0) # default is VTI
 
     filename = None
@@ -973,7 +973,7 @@ def ExportPicture(type_=""):
                         "", # last used directory
                         project_name, # filename
                         WILDCARD_SAVE_PICTURE,
-                        wx.SAVE|wx.OVERWRITE_PROMPT)
+                        wx.FD_SAVE|wx.FD_OVERWRITE_PROMPT)
     dlg.SetFilterIndex(1) # default is VTI
 
     if dlg.ShowModal() == wx.ID_OK:
diff --git a/invesalius/gui/frame.py b/invesalius/gui/frame.py
index 2654ef4..0d86e2b 100644
--- a/invesalius/gui/frame.py
+++ b/invesalius/gui/frame.py
@@ -596,13 +596,13 @@ class MenuBar(wx.MenuBar):
 
             file_edit_item_undo = wx.MenuItem(file_edit, wx.ID_UNDO,  _("Undo\tCtrl+Z"))
             file_edit_item_undo.SetBitmap(self.BMP_UNDO)
-            file_edit_item_undo.Enable(False)
             file_edit.AppendItem(file_edit_item_undo)
+            file_edit_item_undo.Enable(False)
 
             file_edit_item_redo = wx.MenuItem(file_edit, wx.ID_REDO,  _("Redo\tCtrl+Y"))
             file_edit_item_redo.SetBitmap(self.BMP_REDO)
-            file_edit_item_redo.Enable(False)
             file_edit.AppendItem(file_edit_item_redo)
+            file_edit_item_redo.Enable(False)
         else:
             file_edit.Append(wx.ID_UNDO, _("Undo\tCtrl+Z")).Enable(False)
             file_edit.Append(wx.ID_REDO, _("Redo\tCtrl+Y")).Enable(False)
diff --git a/invesalius/gui/task_exporter.py b/invesalius/gui/task_exporter.py
index e11620d..5f5629e 100644
--- a/invesalius/gui/task_exporter.py
+++ b/invesalius/gui/task_exporter.py
@@ -276,7 +276,7 @@ class InnerTaskPanel(wx.Panel):
                             "", # last used directory
                             project_name, # filename
                             WILDCARD_SAVE_MASK,
-                            wx.SAVE|wx.OVERWRITE_PROMPT)
+                            wx.FD_SAVE|wx.FD_OVERWRITE_PROMPT)
         dlg.SetFilterIndex(0) # default is VTI
                                 
         if dlg.ShowModal() == wx.ID_OK:
@@ -312,7 +312,7 @@ class InnerTaskPanel(wx.Panel):
                                 "", # last used directory
                                 project_name, # filename
                                 WILDCARD_SAVE_3D,
-                                wx.SAVE|wx.OVERWRITE_PROMPT)
+                                wx.FD_SAVE|wx.FD_OVERWRITE_PROMPT)
             dlg.SetFilterIndex(3) # default is STL
                                 
             if dlg.ShowModal() == wx.ID_OK:
diff --git a/invesalius/invesalius.py b/invesalius/invesalius.py
index 883f090..5d2d4f1 100755
--- a/invesalius/invesalius.py
+++ b/invesalius/invesalius.py
@@ -30,8 +30,9 @@ if sys.platform == 'win32':
 else:
     if sys.platform != 'darwin':
         import wxversion
-        wxversion.ensureMinimal('2.8-unicode', optionsRequired=True)
-        wxversion.select('2.8-unicode', optionsRequired=True)
+        #wxversion.ensureMinimal('2.8-unicode', optionsRequired=True)
+        #wxversion.select('2.8-unicode', optionsRequired=True)
+        wxversion.ensureMinimal('3.0')
         
 import wx
 #from wx.lib.pubsub import setupv1 #new wx
--
libgit2 0.21.2