diff --git a/Dockerfile-dev b/Dockerfile-dev
index b59909665..624d6be7b 100644
--- a/Dockerfile-dev
+++ b/Dockerfile-dev
@@ -1,4 +1,4 @@
-FROM python:3.6-alpine
+FROM python:3.11.0b1-alpine
 ENV PYTHONUNBUFFERED 1
 
 # Build-time metadata as defined at http://label-schema.org