diff --git a/.circleci/config.yml b/.circleci/config.yml
index d3bc4a068..063e11bb5 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -284,7 +284,7 @@ jobs:
 
   chk_coding_style:
     docker:
-      - image: buildpack-deps:disco
+      - image: buildpack-deps:focal
     steps:
       - checkout
       - run: