diff --git a/.circleci/config.yml b/.circleci/config.yml
index b90ee2a..ec0a80c 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -2,7 +2,7 @@ version: 2.1
 jobs:
   build:
     docker:
-      - image: circleci/python:3.7.9-buster-node-browsers
+      - image: circleci/python:3.9-buster-node-browsers
     steps:
       - checkout
       - restore_cache:
@@ -19,7 +19,7 @@ jobs:
             - "venv"
   test:
     docker:
-      - image: circleci/python:3.7.9-stretch-browsers
+      - image: circleci/python:3.9-stretch-browsers
         environment:
           DATABASE_URL: postgresql://myUsr:somePwd@localhost:5432/psdb
           FLASK_APP: autoapp.py
diff --git a/Dockerfile b/Dockerfile
index 7206943..fb71c6d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,4 @@
-FROM python:3.7.9
+FROM python:3.9
 
 WORKDIR /app
 COPY . .