diff --git a/.circleci/config.yml b/.circleci/config.yml
index b206f24c..43f92c7a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,9 +1,11 @@
 version: 2
 jobs:
   build:
-    working_directory: ~/repo
     docker:
       - image: cimg/node:lts-browsers
+    resource_class: large
+    parallelism: 5
+    working_directory: ~/repo
     steps:
       - checkout
       - restore_cache:
@@ -22,10 +24,10 @@ jobs:
           command: npm run release
       - run:
           name: Run unit tests
-          command: npm run test:coverage
+          command: npm run test --shard=$(expr $CIRCLE_NODE_INDEX + 1)/$CIRCLE_NODE_TOTAL
       - run:
           name: Run e2e tests
-          command: npm run test:e2e
+          command: npm run test:e2e --shard=$(expr $CIRCLE_NODE_INDEX + 1)/$CIRCLE_NODE_TOTAL
       - run:
          name: Submit to Codecov
          command: npm run codecov