diff --git a/.circleci/config.yml b/.circleci/config.yml
index 847f3e2..f922e4a 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -30,7 +30,7 @@ jobs:
     steps:
       - checkout # check out the code in the project directory
       - restore_cache:
-          key: yarn-V3-packages-{ checksum "yarn.lock" }}
+          key: yarn-V3-packages-{{ checksum "yarn.lock" }}
       - run: yarn test:ci
       - save_cache:
           key: yarn-V3-packages-{{ checksum "yarn.lock" }}