diff --git a/requirements.txt b/requirements.txt
index 44d0e5fc6..5ab6f5fb9 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
 ./pyembroidery
 backports.functools_lru_cache
-wxPython
+wxPython==4.0.6
 networkx==2.2
 shapely
 lxml