diff --git a/.circleci/config.yml b/.circleci/config.yml
index 1009467..7e3a557 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -9,7 +9,7 @@ defaults_gradle: &defaults_gradle
   steps:
     - checkout
     - restore_cache:
-        keys: jars-{{ checksum "build.gradle" }}-{{ checksum  "app/build.gradle" }}
+        key: jars-{{ checksum "build.gradle" }}-{{ checksum  "app/build.gradle" }}
     - run:
         name: Setup Google Services
         command: echo $GOOGLE_SERVICES | base64 -di > app/google-services.json