diff --git a/docker/app/Dockerfile b/docker/app/Dockerfile
index 1a00e9d..2d30a57 100644
--- a/docker/app/Dockerfile
+++ b/docker/app/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.7-slim-buster
+FROM python:3.8-slim
 
 RUN apt-get update \
   # dependencies for building Python packages