diff --git a/requirements.txt b/requirements.txt
index 6f8d33890..9dd1702ca 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,4 +1,4 @@
-wxPython >= 4.0.1
+wxPython == 4.0.0b2
 logbook >= 1.0.0
 matplotlib >= 2.0.0
 python-dateutil