diff --git a/.circleci/config.yml b/.circleci/config.yml
index ea431e9..3029496 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,8 +1,12 @@
 version: 2.1
 jobs:
   build:
-    docker:
-      - image: cimg/node:14.10.1 # the primary container, where your job's commands are run
+    cache: &shared-config
+      docker:
+        - image: cimg/node:14.10.1 # the primary container, where your job's commands are run
+          auth:
+            username: mydockerhub-user
+            password: $DOCKERHUB_PASSWORD # context / project UI env-var reference
     steps:
       - checkout # check out the code in the project directory
       - run: echo "hello world" # run the `echo` command