diff --git a/.circleci/config.yml b/.circleci/config.yml
index 6eb63477..bac420d9 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -12,8 +12,9 @@ jobs:
       COMPILE: --compile
     # To see the list of pre-built images that CircleCI provides for most common languages see
     # https://circleci.com/docs/2.0/circleci-images/
-    docker:
-    - image: circleci/python:3.7.3
+    machine:
+      python:
+        version: 2.7.14
     steps:
     # Machine Setup
     #   If you break your build into multiple jobs with workflows, you will probably want to do the parts of this that are relevant in each