diff --git a/pio-tools/espupload.py b/pio-tools/espupload.py
index d7f7e9512..5e127785f 100755
--- a/pio-tools/espupload.py
+++ b/pio-tools/espupload.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/python3
 #
 # espupload by Theo Arends - 20170930
 #