diff --git a/.circleci/config.yml b/.circleci/config.yml
index 59eafc34..ca95b987 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -9,7 +9,7 @@ workflows:
 jobs:
   test-cli:
     docker:
-      - image: circleci/python:3.8-buster
+      - image: circleci/python:3.9-buster
 
     working_directory: ~/repo
 
@@ -37,7 +37,7 @@ jobs:
     
   test-gui:
     docker:
-      - image: circleci/python:3.8-buster
+      - image: circleci/python:3.9-buster
 
     working_directory: ~/repo