diff --git a/.circleci/config.yml b/.circleci/config.yml
index 1f66dbc..4434fc6 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -63,6 +63,9 @@ jobs:
       - attach_workspace:
           at: ~/repo
 
+      - run:
+          name: Install browserify
+          command: yarn global add browserify
       - run:
           name: Browserify TypeScript code
           command: yarn browserify