diff --git a/dicompyler/baseplugins/2dview.py b/dicompyler/baseplugins/2dview.py
index 6e8746c..accec68 100644
--- a/dicompyler/baseplugins/2dview.py
+++ b/dicompyler/baseplugins/2dview.py
@@ -10,7 +10,7 @@
 
 import wx
 from wx.xrc import XmlResource, XRCCTRL, XRCID
-from wx.lib.pubsub import pub
+from pubsub import pub
 from matplotlib import _cntr as cntr
 from matplotlib import __version__ as mplversion
 import numpy as np
diff --git a/dicompyler/baseplugins/anonymize.py b/dicompyler/baseplugins/anonymize.py
index ad837c3..306e8b7 100755
--- a/dicompyler/baseplugins/anonymize.py
+++ b/dicompyler/baseplugins/anonymize.py
@@ -10,7 +10,7 @@
 
 import wx
 from wx.xrc import XmlResource, XRCCTRL, XRCID
-from wx.lib.pubsub import pub
+from pubsub import pub
 import os, threading
 from dicompyler import guiutil, util
 
diff --git a/dicompyler/baseplugins/dvh.py b/dicompyler/baseplugins/dvh.py
index 2a0863c..a869d26 100755
--- a/dicompyler/baseplugins/dvh.py
+++ b/dicompyler/baseplugins/dvh.py
@@ -12,7 +12,7 @@
 
 import wx
 from wx.xrc import XmlResource, XRCCTRL, XRCID
-from wx.lib.pubsub import pub
+from pubsub import pub
 from dicompyler import guiutil, util
 from dicompyler import guidvh
 import numpy as np
diff --git a/dicompyler/baseplugins/quickopen.py b/dicompyler/baseplugins/quickopen.py
index a84537f..7bd00c5 100644
--- a/dicompyler/baseplugins/quickopen.py
+++ b/dicompyler/baseplugins/quickopen.py
@@ -11,7 +11,7 @@
 import logging
 logger = logging.getLogger('dicompyler.quickimport')
 import wx
-from wx.lib.pubsub import pub
+from pubsub import pub
 from dicompylercore import dicomparser
 from dicompyler import util
 
diff --git a/dicompyler/baseplugins/treeview.py b/dicompyler/baseplugins/treeview.py
index 8135cf3..df8983c 100755
--- a/dicompyler/baseplugins/treeview.py
+++ b/dicompyler/baseplugins/treeview.py
@@ -14,7 +14,7 @@
 from six.moves import queue
 import wx
 from wx.xrc import XmlResource, XRCCTRL, XRCID
-from wx.lib.pubsub import pub
+from pubsub import pub
 from wx.dataview import TreeListCtrl as tlc
 from dicompyler import guiutil, util
 try:
diff --git a/dicompyler/dicomgui.py b/dicompyler/dicomgui.py
index 642e266..462a0b1 100755
--- a/dicompyler/dicomgui.py
+++ b/dicompyler/dicomgui.py
@@ -15,7 +15,7 @@
 import hashlib, os, threading
 import wx
 from wx.xrc import *
-from wx.lib.pubsub import pub
+from pubsub import pub
 import numpy as np
 from dicompylercore import dicomparser
 from dicompyler import guiutil, util
diff --git a/dicompyler/guiutil.py b/dicompyler/guiutil.py
index c5ec10d..076802e 100755
--- a/dicompyler/guiutil.py
+++ b/dicompyler/guiutil.py
@@ -10,7 +10,7 @@
 from dicompyler import util
 import wx
 from wx.xrc import XmlResource, XRCCTRL, XRCID
-from wx.lib.pubsub import pub
+from pubsub import pub
 
 def IsMSWindows():
     """Are we running on Windows?
diff --git a/dicompyler/main.py b/dicompyler/main.py
index 5e188fb..b602505 100644
--- a/dicompyler/main.py
+++ b/dicompyler/main.py
@@ -20,7 +20,7 @@
 import wx.adv
 import wx.lib.dialogs, webbrowser
 import pydicom
-from wx.lib.pubsub import pub
+from pubsub import pub
 from dicompylercore import dvhcalc
 from dicompyler import __version__
 from dicompyler import guiutil, util
diff --git a/dicompyler/plugin.py b/dicompyler/plugin.py
index ff417b0..feab73b 100755
--- a/dicompyler/plugin.py
+++ b/dicompyler/plugin.py
@@ -12,7 +12,7 @@
 import imp, os
 import wx
 from wx.xrc import *
-from wx.lib.pubsub import pub
+from pubsub import pub
 from dicompyler import guiutil, util
 
 def import_plugins(userpath=None):
diff --git a/dicompyler/preferences.py b/dicompyler/preferences.py
index 8d73980..c0b47a7 100755
--- a/dicompyler/preferences.py
+++ b/dicompyler/preferences.py
@@ -10,7 +10,7 @@
 import os
 import wx
 from wx.xrc import *
-from wx.lib.pubsub import pub
+from pubsub import pub
 from dicompyler import guiutil, util
 
 try:
@@ -377,7 +377,7 @@ def main():
 
     import tempfile, os
     import wx
-    from wx.lib.pubsub import Publisher as pub
+    from pubsub import Publisher as pub
 
     app = wx.App(False)
 
diff --git a/requirements.txt b/requirements.txt
index 987eefd..8719332 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -3,3 +3,6 @@ wxPython>=4.0.0b2
 matplotlib>=1.3,<2.2
 numpy>=1.13.1
 https://github.com/darcymason/pydicom/archive/master.zip
+
+# Fix #131
+PyPubSub