diff --git a/.circleci/config.yml b/.circleci/config.yml
index 2050640..e30ebc1 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -1,5 +1,5 @@
 workflows:
-version: 2
+version: 2.1
   build_and_test:
     jobs:
       - build