diff --git a/Dockerfile b/Dockerfile
index 583a47c..89087d5 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 # set base image (host OS)
-FROM python:3.8
+FROM python:3.9
 
 # set the working directory in the container
 WORKDIR /code