diff --git a/.circleci/config.yml b/.circleci/config.yml
index ab41f937..f99ea02b 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -2,7 +2,7 @@ version: 2
 jobs:
   build:
     docker:
-      - image: ubuntu:18.04
+      - image: ubuntu:16.04
     steps:
       - checkout
       - run: