diff --git a/contrib/osx/make_osx b/contrib/osx/make_osx
index 17eb3fb93..76091401b 100755
--- a/contrib/osx/make_osx
+++ b/contrib/osx/make_osx
@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
 # Parameterize
-PYTHON_VERSION=3.6.7
+PYTHON_VERSION=3.6.4
 BUILDDIR=/tmp/electrum-build
 PACKAGE=Electrum
 GIT_REPO=https://github.com/spesmilo/electrum