diff --git a/.circleci/config.yml b/.circleci/config.yml
index 50474b5..aa8c67d 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -22,7 +22,7 @@ jobs:
       # Download and cache dependencies
       - restore_cache:
           keys:
-          - v1-dependencies-{{ checksum "package.json" }}
+          - v1-dependencies-{{ checksum "yarn.lock" }}
           # fallback to using the latest cache if no exact match is found
           - v1-dependencies-
 
@@ -31,7 +31,7 @@ jobs:
       - save_cache:
           paths:
             - node_modules
-          key: v1-dependencies-{{ checksum "package.json" }}
+          key: v1-dependencies-{{ checksum "yarn.lock" }}
         
       # run tests!
       - run: yarn run build
\ No newline at end of file