diff --git a/Dockerfile b/Dockerfile
index 9ee79d3..fd804be 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.8.9-buster
+FROM python:3.9.16-buster
 
 ## The MAINTAINER instruction sets the author field of the generated images.
 MAINTAINER author@example.com